Ametek Universal Analyzers 270SF User manual

MAN.270SF.REVA.12222014
Instruction Manual
Model 270SF
Extractive Gas Sample Probe
5200 Convair Drive Carson City, NV 89706 • Phone: [phone] • Fax: [phone] • www.universalanalyzers.com

Page 2 of 45 Page 3 of 45
MAN.270SF.REVA.12222014
Contents
Receiving and Storage 3
Denition of Symbols 4
Product Identication 5
Specications 6
Description and Principle of Operation 7
Installation 8
Electrical Connections 9
Process and Piping Connections 16
Start-Up 17
Shutdown 17
Maintenance 18
Troubleshooting 19
Spare Parts 20
Drawings - Model 270SF 21
Limited Warranty 44

Page 2 of 45 Page 3 of 45 MAN.270SF.REVA.12222014
Receiving and Storage
The UAI 270SF Extractive Gas Sample Probe is a complete pre-installed unit. No assembly is necessary when received
on-site.
Carefully inspect the product and any special accessories included with it immediately on arrival by removing them from
the packing and checking for missing articles against the packing list.
Check the items for any damage in transit and, if required, inform the shipping insurance company immediately of any
damage found.
Storage Location should be protected from the elements. Although all components provided are designed to resist
corrosion, additional protection from heat (>140°F/ 60°C) and humidity is recommended.

Page 4 of 45 Page 5 of 45
MAN.270SF.REVA.12222014
Denition of Symbols
WARNING - EXPLOSION HAZARD - DO NOT DISCONNECT EQUIPMENT UNLESS POWER HAS BEEN SWITCHED
OFF OR THE AREA IS KNOWN TO BE NON-HAZARDOUS.
WARNING - EXPLOSION HAZARD - SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR
HAZARDOUS AREA INSTALLATION.
THE SUPPLY POWER CIRCUIT MUST INCLUDE AN OVERPROTECTION DEVICE WITH A MAXIMUM RATING OF 20
A. A DISCONNECT SWITCH MUST BE LOCATED IN CLOSE PROXIMITY TO THE PROBE.
IF THE EQUIPMENT IS USED IN A MANNER NOT SPECIFIED BY THE MANUFACTURER, THE PROTECTION
PROVIDED BY THE EQUIPMENT MAY BE IMPAIRED PER CLAUSE 5.4.4(i) IN STANDARD EN 61010-1
CAUTION, RISK OF DANGER SYMBOL INDICATES INJURY MAY OCCUR IF MANUFACTURER’S INSTRUCTIONS
ARE NOT ADHERED TO. PLEASE READ MANUAL CAREFULLY WHEN SYMBOL IS DISPLAYED
CAUTION, HOT SURFACE SYMBOL INDICATES EXPOSED SURFACE TEMPERATURE CAN CAUSE BURNS OR
PERSONAL INJURY. CARE SHOULD BE TAKEN WHEN CONTACT IS REQUIRED.
CAUTION, RISK OF ELECTRICAL SHOCK SYMBOL INDICATES ELECTRICAL SHOCK MAY OCCUR. CAUTION
SHOULD BE TAKEN BEFORE DISCONNECTING OR CONTACTING ANY ELECTRICAL CONNECTIONS.
PROTECTIVE CONDUCTOR TERMINAL SYMBOL INDICATES THE TERMINAL LOCATION FOR THE
PROTECTIVE CONDUCTOR. FAILURE TO CONNECT TO THE PROTECTIVE CONDUCTOR TERMINAL MAY RESULT
IN A SHOCK HAZARD.

Page 4 of 45 Page 5 of 45 MAN.270SF.REVA.12222014
Product Identication
Extractive Gas Sample Probe (Part Number Congurator: 270)
270 Extractive Gas Sample Probe
Chamber Material
S316SS <400°F - 3/4” NPT Pipe Connection
SF 316SS <400°F (Standard) - Sub-Flange Mount
CHastelloy C-276 <400°F - 3/4” NPT Pipe Connection
CF Hastelloy C-276 <400°F - Sub-Flange Mount
ST 316SS with TFE Coating <400°F - 3/4” NPT Pipe Connection
STF 316SS with TFE Coating <400°F - Sub-Flange Mount
SN 316SS with Sulnert® Coating <400°F - 3/4” NPT Pipe Connection
SNF 316SS with Sulnert® Coating <400°F - Sub-Flange Mount
SH 316SS Hi Temp with Kalrez®O-Rings <550°F - 3/4” NPT Pipe Connection
SHF 316SS Hi Temp with Kalrez®O-Rings <550°F - Sub-Flange Mount
CH Hastelloy C-276 Hi Temp with Kalrez®O-Rings <550°F - 3/4” NPT Pipe Connection
CHF Hastelloy C-276 Hi Temp with Kalrez®O-Rings <550°F - Sub-Flange Mount
SNH 316SS with Sulnert® Coating & Kalrez®O-Rings <550°F - 3/4” NPT Pipe Connection
SNHF 316SS with Sulnert® Coating & Kalrez®O-Rings <550°F - Sub-Flange Mount
Mounting Flange
F1.5 1.5” Flange
F2 2” Flange
F3 3” Flange
F4 4” Flange
F6 6” Flange
F1.T 1.5” Flange - Top Dead Center
F2T 2” Flange - Top Dead Center
F3T 3” Flange - Top Dead Center
F4T 4” Flange - Top Dead Center
F6T 6” Flange - Top Dead Center
NNo Flange - 3/4” MNPT
Chamber Temperature Control
TS340 340°F Temperature Switch (Standard) - Mandatory for Agency Approved Units (Standard)
STM Steam**
Chamber Blowback
BB Blowback (Standard)
HBB Heated Blowback
NNo Blowback
Blowback Port
SBB Standard Blowback
BPT Blowback Probe Tip Filter Only
DBB Dual Blowback Chamber & Probe Tip Filter
NNone
Blowback Valve Voltage
24 24VDC Actuator
115 115VAC Actuator
230 230VAC Actuator
AIR Pneumatic Actuator
NNo Blowback
Enclosure
FG Fiberglass Enclosure (Standard), 3” Boot
FGI Fiberglass Enclosure, Insulated, 3” Boot
FGH Fiberglass Enclosure, Insulated/Heated, 3” Boot (Not available for FM)
SS SS Enclosure, 3” Boot
SSI SS Enclosure, Insulated, 3” Boot
SSH SS Enclosure, Insulated/Heated, 3” Boot (Not available for FM)
NNo Enclosure
Enclosure Heater Control
EX ATEX Approved Heater (160°F/71°C)
NNo Heat Enclosure (Standard)
Power Supply
115 115VAC 50/60 Hz General Purpose
230 230VAC 50/60 Hz General Purpose
Filter
CM 2 µm Ceramic
CA 1 µm Ceramic
CC 0.1 µm Ceramic
SS 2 µm Sintered 316SS
Alarm Output
CClosed on Alarm
FFail Safe (Standard)
TK Type K ThermoCouple
RD 100 Ohm RTD
NNone
270 -SF -F4 -TS340 -BB -SBB -115 -FG -N -115 -CM -F Sample Part #
NOTE: Probe Tip Filters & Probe Tubes Purchased Separately.

Page 6 of 45 Page 7 of 45
MAN.270SF.REVA.12222014
Specications
OPERATING SPECIFICATIONS
Sample Flow Rate 0 to 20 l/m
Calibration Gas Requirement Sample ow rate plus 10%
Operating Pressure Drop at 10 l/m 12” water column
Maximum Stack Temperature 700°F (370°C)
Oven Temperature 340°F (171°C)
Enclosure Dimensions:
Fiberglass H 18” x W 16” x D 10” (H 458mm x W 407mm x D 255mm) f
SS H 16” x W 14” x D 8” (H 407mm x W 356mm x D 203mm)
Weight 25 lbs (12kg) (plus probe)
Input Voltage Requirement 115/230VAC 50/60 Hz
Input Power Requirement 150 watts
With Optional Heated Enclosure 350 watts
**External fuse required of 20 A or less**
Electrical Classication General purpose
Ambient Temperature, Operating 200°F maximum (93°C)
Blowback Tank Volume 0.7 scf (19.8 l) when at 100 psig (7.4 barg)
Blowback Duration 0.5 sec. to empty accumulator
Enclosure Nema 4x berglass (standard)
Stainless steel (optional)
Sample Line Connection 3” Heat shrink boot (standard)
4” Heat shrink boot (optional)
2” Heat shrink boot (optional)
Heater Type Rod heaters in aluminum block, controlled w/ thermal switch
Available Filter 2 µm ceramic (standard)
316SS (optional)
Chamber Materials 316SS (standard)
316SS, SilcoNert™ coated Hastelloy C-276

Page 6 of 45 Page 7 of 45 MAN.270SF.REVA.12222014
Description and Principle of Operation
APPLICATION
The Universal Analyzers Model 270SF Extractive Gas Sample Probe Assembly is designed to be installed on sample
stacks containing non hazardous gases. The 270 may be installed in an unclassied location. Filter changes can be made
in less than one minute.
The 270SF lter will mount by means of a pipe ange to a mating ange on the stack. The size of the ange can be
specied by the user and can include 2”, 3”, 4”, 6” or DIN type. A 1/2” NPT female threaded connection is provided for the
sample probe to mount inside the mounting ange. Stack temperatures and corrosive gases will determine the material
and design of the probe to be used.
Sample ow rates of up to 20 liters per minute can be extracted and ltered through the Model 270 with a minimal amount
of pressure drop.
GENERAL DESCRIPTION, HEATED FILTER SECTION
The Model 270SF is a Extractive Gas Sample Probe Assembly consisting of the lter body mounted in a NEMA 4X
Fiberglass Enclosure or Stainless Steel Enclosure. An optional blowback system is provided to allow the blowback to
occur on command from a computer, data logger, PLC, UAI timer card or external switch mounted in a safe area.
Two 63 watt heaters are mounted in an aluminum sleeve around the lter cavity. The heater holds the temperature of the
lter at 340°F (171°C). A hermetically sealed bi-metallic thermal switch mounted to the lter body keeps the temperature
from exceeding 350°F (177°C) by opening the circuit at that temperature. An optional independent temperature sensor
can be provided as a means to measure and transmit or record the temperature of the lter. A second thermal switch, set
at 225°F (107°C) is provided to be used as an alarm contact, if the temperature drops below the switch temperature. In
colder climates, an additional heater can be supplied for the enclosure. This heater will maintain 150°F (65°C) inside the
enclosure.
Several types of lter elements can be supplied with the Model 270. The 2 µm ceramic lter is supplied as an economical
general purpose lter. A similar ceramic lter with an internal 0.1 µm coating is available for ner ltration or to provide a
surface to enhance the blowback capability where the particulates have a tendency to ll the pores of the 2 µm element.
A 2 µm, 316SS Filter can be inserted for those applications where the ceramic lter is determined to be unsuitable.
Additional ltration materials and pore sizes are available on request.
Blowback air is used to clean the lter element. Compressed air supplied to the blowback assembly needs to be clean
and dry (-40°F/°C recommended). Instrument quality air is preferred. The pressure should be as high as possible, up to
125 psig (8.8 barg). High pressure air lls the accumulator (a 7” (178mm) diameter SS sphere) and provides a substantial
blast when the high ow solenoid valve opens. This loosens the particles on the lter surface and forces them back
through the sample probe into the sample point. The period of time between blowback cycles should be set to occur
before the pressure drop across the lter begins to increase beyond acceptable limits. By installing and monitoring a
vacuum gauge ahead of the sample pump, a maintenance interval can be established. This can be as often as every
fteen minutes but no less frequently than once per day. The time period between blowback cycles can be based on a
calculation to estimate the amount of sample required to deposit from three to ve grams of solids in the lter element.
Instrument air usage is minimal and smoothed by the fact that the air accumulator is charged over a period of time through
a 1/4” instrument air line. The recharge time could be extended with a restriction in the air line if it were desired to reduce
the pressure pulses on the instrument air supply and to consume instrument air more slowly.
The calibration gas is injected into the chamber ahead of the lter. This is close to the sample source, as is required by
many EPA ofcers. A back pressure check valve (set at 3 psig (0.2 barg) is provided in the cal gas injection path to insure
that calibration gas does not leak into the sample while the sample is being drawn through the lter.

Page 8 of 45 Page 9 of 45
MAN.270SF.REVA.12222014
Installation
The probe tube (stinger) should be screwed into the 1/2” NPT tting on the inside of the mounting ange. To prevent
galling, coat the threads with an anti-seize compound. Remove and anti-seize compound from the inner wall of the probe
tube before attaching it to the probe. The length of the probe should be selected to extend into the center third of the
stack; or if the stack diameter is greater than 12’, at least 6’ into that stack. The studs on the mounting ange should be
joined to the sampling nozzle on the stack and the assembly bolted into place.
A heated sample line should be supported close to the Model 270. The heated sample line should be fed through the heat
shrink boot on the bottom of the enlcosure. Connect the sample tube to the center tubing tting (3/8”) on the lter. The
unheated portion of the sample line should be kept short and insulated to avoid condensation. Connect the calibration
gas line to 1/4” tubing tting located on the left side of the chamber and is connected to the chamber via a check valve. If
the compressed air line is part of the heated sample line, it can be connected to the 1/4” tting adjacent to the blowback
accumulator. If an external air line is to be used for blowback, bring the air into the enclosure through a bulkhead tting
(supplied by others) to be installed in the wall of the enclosure, typically the mounting location is in the bottom of the
enclosure, and connect the air to the same 1/4” tting.
Provide power to the terminal block(s) within the stack lter enclosure in the Model 270. 150 watts (without heated
enclosure) or 350 watts with heated enclosure, at 115/230VAC is required.
NOTE: The supply power circuit MUST include an overprotection device with a maximum rating of
20A. A disconnect switch must be located in close proximity to the probe.
A thermal switch mounted in the aluminum heater will control the temperature to 340°F (171°C). Insure the
power supplied to the heater matches the heater voltage requirement shown on the serial number tag. The
voltage requirement can be changed by changing the jumpers on the terminal strips (reference terminal strip
label or drawings for details). An independent ground wire should be run to the grounding terminal on
the terminal strip.
If an independent measurement and display of the oven temperature is desired, a temperature sensor can be slipped into
a 1/8” diameter thermowell supplied on the heater tube assembly.
The nal installation step is to insure that the sample line is insulated completely. Close the cover of the enclosure and
secure the latches. After securing the heated sample line, use a heat gun to shrink the entry boot onto the sample line.
The goal is to keep the temperature of the gas sample at a temperature above the dew point of the gas all the way from
the stack to the sample cooler/dehydrator.

Page 8 of 45 Page 9 of 45 MAN.270SF.REVA.12222014
Electrical Connections Model 270SF
Non-Heated Enclosure Conguration w/o Blowback

Page 10 of 45 Page 11 of 45
MAN.270SF.REVA.12222014
Electrical Connections Model 270SF
Heated Enclosure Conguration w/o Blowback
Heated Enclosure w/ Blowback

Page 10 of 45 Page 11 of 45 MAN.270SF.REVA.12222014
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INSTRUMENT
REV
REVISIONS
FORPART NO.
APVD BY DRAWN BY DRAWING NO.
DATE
MODEL 270 S/C F
OPTIONAL WIRING SCHEMATICS
DATE DESCRIPTION DWN APVD
SCALE SIZE SHEET
NTS D 7 OF 7
P1079
06/23/2006
R. Wells G. Evans
CNC
TS4=
CNO
TS4=
OR
225ºF
NO
225ºF
NC
(YEL) (BLU)
"FAIL SAFE"
G 1 3 4 6
H/L1
N/L2
GND
115/230VAC
3-AMP 50/60Hz
INPUT POWER
TB3
LOW TEMP
DRY CONTACTS
USER CONNECTIONS
2 5
115V 115V
230V
7
OPTIONAL BALL VALVE (BV1)
THERMAL SWITCH TEMPERATURE CONTROL
NOTES: 1) FILTER HEATER ROD SPECIFICATIONS (HTR1,2,4,5): 3/8" Ø X 1.5" LG @ 63 WATT/115VAC - P/N 3014-0046 2) OVEN TEMP. CONTROL OPTIONS (TS1 & TS3): NORMALLY CLOSED (NC) BELOW 340°F - P/N 3103-0014 NORMALLY CLOSED (NC) BELOW 375°F - P/N 3103-0061 NORMALLY CLOSED (NC) BELOW 225°F - P/N 3103-0013 NORMALLY CLOSED (NC) BELOW 550°F - P/N 3103-0005 3) LOW TEMP ALARM OPTIONS (TS2 & TS4): (NOT AVAILABLE WITH 225 OVEN TEMP. CONTROL OPTION) YELLOW (YEL) - NORMALLY CLOSED (NC) BELOW 225ºF - P/N 3103-0013 BLUE (BLU) - NORMALLY OPEN (NO) BELOW 225ºF - P/N 3103-0012 4 REMOTE CHAMBER HEATER CONTROL OPTION (TB1-1) WILL REQUIRE LABEL P/N 5001-0217 TO BE ATTACHED TO BACK PLATE PARALLEL TO TB1; THAT NO TEMPERATURE CONTROL SWITCH BE USED; AND BE REGULATED WITH A TEMPERATURE CONTROLLING DEVICE. VERIFY THAT THE VOLTAGE BEING SUPPLIED MATCHES THE VOLTAGE RATING ON THE SERIAL TAG. 5 FOR VOLTAGE CHANGE IN THE FIELD FROM 115 VAC TO 230 VAC, REMOVE JUMPERS ON TB1 & TB3 AT TERMINAL LOCATIONS 2-3 & 4-5. INSERT JUMPER AT TERMINAL LOCATION 3-4. 6 DIODE NEEDED FOR 24V SOLENOIDS P/N 1000-0009 - MOV FOR VAC SOLENOIDS P/N 1010-1001. 7 PRE TUBE HEATER (HTR3) : OPTIONAL 1.0"Ø HEATER BAND P/N 3014-0041. NOT TO BE USED IN ATEX UNITS. FIELD TO WIRE
5
270
ECO#
HTR4
HTR5
CNC
PT100 RTD
TEMPERATURE
SENSOR
P/N 1150-0059
PT100 RTD OPTION
FOR REMOTE FILTER HEATER
TEMPERATURE
MONITORING / CONTROL
1 2 3
TB2
T/C - TYPE "K"
THERMOCOUPLE
P/N 1150-0053
USER PT100 RTD
CONNECTION
USER
THERMOCOUPLE
CONNECTION
WHT
RED
RED
+CH
TB2
-AL
THERMOCOUPLE OPTION FOR REMOTE
FILTER HEATER TEMPER ATURE
MONITORING / CONTROL
TERMINAL BLOCK P/N
CO = 3304-0171
FE = 3304-0172
T/C - TYPE "J"
THERMOCOUPLE
P/N 1150-0054
USER
THERMOCOUPLE
CONNECTION
CO
TB2
FE
THERMOCOUPLE OPTION FOR REMOTE
FILTER HEATER TEMPERATURE
MONITORING / CONTROL
TERMINAL BLOCK P/N
+CH = 3304-0167
-AL = 3304-0168
REMOTE TEMPERATURE CONTROLLER W/ BAND HEATER OPTION
CNC
TS2=
CNO
TS2=
OR
225ºF
NO
225ºF
NC
(YEL) (BLU)
"FAIL SAFE"
G 1 3 4 9
H/L1
N/L2
GND
115/230VAC
3-AMP 50/60Hz
INPUT POWER
TB1
HTR1 HTR2
LOW TEMP
DRY CONTACTS
USER CONNECTIONS
2 5 7 8
115V 115V
230V
10
L1 L2
SV20
-/L2
+/L1
G G
VALVE
BRKT
OVEN
CHMBR
4
CNC
TS1= 550ºF
NC
5
6
(OPTIONAL)
BLOWBACK CONTROL
24VDC OR 115/230VAC
INPUT VOLTAGE
(CUSTOMER TO SPECIFY)
TS3= 225°/340º/375°F
NC
5200 Convair Drive, Carson City , Nevada 89706 [phone]
CNC
TS2=
CNO
TS2=
OR
225ºF
NO
225ºF
NC
(YEL) (BLU)
"FAIL SAFE"
G 1 3 4 9
H/L1
N/L2
GND
115/230VAC
3-AMP 50/60Hz
INPUT POWER
TB1
LOW TEMP
DRY CONTACTS
USER CONNECTIONS
2 5 7 8
115V 115V
230V
10
SV20
G G
VALVE
BRKT
OVEN
CHMBR
THERMAL SWITCH TEMPERATURE CONTROL W/ BAND HEATER OPTION
5
6
HTR1
HTR2
CNC
HTR3
(OPTIONAL)
L1 L2
(OPTIONAL)
BLOWBACK CONTROL
24VDC OR 115/230VAC
INPUT VOLTAGE
(CUSTOMER TO SPECIFY)
-/L2
+/L1
TS1= 225°/340º/375°F
NC
6
OPTIONAL
7
6
HTR3
(OPTIONAL)
7
Q 08/16/12 Add Optional Wiring Schematics MW EG
1398
CNC
TS2=
CNO
TS2=
OR
225ºF
NO
225ºF
NC
(YEL) (BLU)
"FAIL SAFE"
G 1 3 4 8
H/L1
N/L2
GND
115/230VAC
3-AMP 50/60Hz
INPUT POWER
TB1
HTR1 HTR2
LOW TEMP
DRY CONTACTS
USER CONNECTIONS
2 5 6 7
115V 115V
230V
9
L1 L2
SV20
BLOWBACK CONTROL
24VDC OR 115/230VAC
INPUT VOLTAGE
(CUSTOMER TO
SPECIFY)
-/L2
+/L1
G G
VALVE
BRKT
OVEN
CHMBR
CNC
TS1= 225°/340º/375°F
NC
THERMAL SWITCH TEMPERATURE CONTROL
REMOTE TEMPERATURE CONTROLLER
CNC
TS2=
C NO
TS2=
OR
225ºF
NO
225ºF
NC
(YEL) (BLU)
"FAIL SAFE"
G 1 3 4 8
H/L1
N/L2
GND
115/230VAC
3-AMP 50/60Hz
INPUT POWER
TB1
HTR1 HTR2
LOW TEMP
DRY CONTACTS
USER CONNECTIONS
2 5 6 7
115V 115V
230V
9
L1 L2
SV20
BLOWBACK CONTROL
24VDC OR 115/230VAC
INPUT VOLTAGE
(CUSTOMER TO
SPECIFY)
-/L2
+/L1
G G
VALVE
BRKT
OVEN
CHMBR
4
CNC
TS1= 550ºF
NC
5
5
6 6
DIODE RECTIFIERS
#1N4004
UAI P/N 1000-0009
TYP
Electrical Connections Model 270SF

Page 12 of 45 Page 13 of 45
MAN.270SF.REVA.12222014
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INSTRUMENT
REV
REVISIONS
FORPART NO.
APVD BY DRAWN BY DRAWING NO.
DATE
MODEL 270 S/C F
OPTIONAL WIRING SCHEMATICS
DATE DESCRIPTION DWN APVD
SCALE SIZE SHEET
NTS D 2 OF 4
UNIVERSAL ANALYZERS INC.
1701 South Sutro Terrace Carson City, Nevada 89706 USA
P1080
06/23/2006
R. Wells G. Evans
CNC
TS2=
CNO
TS2=
OR
225ºF
NO
225ºF
NC
(YEL) (BLU)
"FAIL SAFE"
G 1 3 4 G
H/L1
N/L2
GND
115/230VAC
3-AMP 50/60Hz
INPUT POWER
TB1
HTR1
CNC
HTR2
LOW TEMP
DRY CONTACTS
USER CONNECTIONS
2 5 6 7
115V 115V
230V
9 10
SV20 - FOR BLOWBACK
(115VAC OR 230VAC)
L N
G
COM
MANUAL B.B.
AUTO-OFF
TB1-G TB1-2 TB1-1
JUMPER OR CLOSE SWITCH TO INHIBIT
AUTOMATIC BLOWBACK
MANUAL
BLOWBACK
BLOWBACK TIMER
CARD
P/N 3600-0019 115VAC P/N 3600-0054 230VAC
JUMPER CHANGE
REQUIRED FOR
SELECTING
115/230VAC
J4/L1
J2/L2
L1 L2
G 8
AUTO OFF
MAN. BB
COM
VALVE
BRKT
OVEN
CHMBR
TS1=
225°/340º/375°F
NC
G 1 3 4 7
H/L1
N/L2
GND
115/230VAC
3-AMP 50/60Hz
TEMP. CONTROLLED
INPUT POWER
TB1
HTR1 HTR2
LOW TEMP
DRY CONTACTS
USER CONNECTIONS
2 5 G 6
115V 115V
230V
8 G 9
SV20 - FOR BLOWBACK
(115VAC OR 230VAC)
COM
MANUAL B.B.
AUTO-OFF
TB1-G TB1-12 TB1-11
JUMPER OR CLOSE SWITCH TO INHIBIT
AUTOMATIC BLOWBACK
MANUAL
BLOWBACK
L1 L2
10
H/L1
N/L2
115/230VAC
.5-AMP 50/60Hz
INPUT POWER
GND
THERMAL SWITCH TEMPERATURE CONTROL
L N
G
J4/L1
J2/L2
AUTO OFF
MAN. BB
COM
11 12 G
CNC
TS2=
CNO
TS2=
OR
225ºF
NO
225ºF
NC
(YEL) (BLU)
"FAIL SAFE"
VALVE
BRKT
OVEN
CHMBR
PT100 RTD
TEMPERATURE
SENSOR
P/N 1150-0059
OPTIONAL
PT100 RTD FOR REMOTE FILTER
HEATER TEMPERATURE
MONITORING / CONTROL
1 2 3
TB2
T/C - TYPE "K"
THERMOCOUPLE
P/N 1150-0053
USER PT100 RTD
CONNECTION
USER
THERMOCOUPLE
CONNECTION
WHT
RED
RED
+CH
TB2
-AL
THERMOCOUPLE FOR REMOTE
FILTER HEATER TEMPERATURE
MONITORING / CONTROL
TERMINAL BLOCK P/N
CO = 3304-0171
FE = 3304-0172
T/C - TYPE "J"
THERMOCOUPLE
P/N 1150-0054
USER
THERMOCOUPLE
CONNECTION
CO
TB2
FE
THERMOCOUPLE FOR REMOTE
FILTER HEATER TEMPERATURE
MONITORING / CONTROL
TERMINAL BLOCK P/N
+CH = 3304-0167
-AL = 3304-0168
REMOTE TEMPERATURE CONTROLLER
BLOWBACK TIMER
CARD
P/N 3600-0019 115VAC P/N 3600-0054 230VAC
JUMPER CHANGE
REQUIRED FOR
SELECTING 115/230VAC
4
NOTES: 1) FILTER HEATER ROD SPECIFICATIONS (HTR1 & HTR2): 3/8" Ø X 1.5" LG @ 63 WATT/115VAC - U.A.I. P/N 3014-0046 2) OVEN TEMP. CONTROL OPTIONS: NORMALLY CLOSED (NC) BELOW 340°F - 3103-0014 NORMALLY CLOSED (NC) BELOW 375°F - 3103-0061 NORMALLY CLOSED (NC) BELOW 225°F - 3103-0013 NORMALLY CLOSED (NC) BELOW 550°F - 3103-0005 3) LOW TEMP ALARM OPTIONS (TS2): (NOT AVAILABLE WITH 225 OVEN TEMP. CONTROL OPTION) YELLOW (YEL) - NORMALLY CLOSED (NC) BELOW 225ºF - U.A.I. P/N 3103-0013 BLUE (BLU) - NORMALLY OPEN (NO) BELOW 225ºF - U.A.I. P/N 3103-0012 4 USER CHAMBER HEATER CONTROL OPTION (TB1-1) WILL REQUIRE LABEL 5001-0217 TO BE ATTACHED TO BACK PLATE PARALLEL TO TB1; THAT NO TEMPERATURE CONTROL SWITCH BE USED; AND BE REGULATED WITH A TEMPERATURE CONTROLLING DEVICE. VERIFY THAT THE VOLTAGE BEING SUPPLIED MATCHES THE VOLTAGE RATING ON THE SERIAL TAG. 5 FOR VOLTAGE CHANGE IN THE FIELD FROM 115 VAC TO 230 VAC, REMOVE JUMPERS ON TB1 & TB3 AT TERMINAL LOCATIONS 2-3 & 4-5. INSERT JUMPER AT TERMINAL LOCATION 3-4. TIMERCARD IS NOT FIELD CONFIGURABLE. __ __ __ __ __ __ __ __ __ __ FIELD TO WIRE
CNC
TS1= 550ºF
NC
5
5
270
H 06/22/09 Add Configuration Options RW TM
Electrical Connections Model 270SF

Page 12 of 45 Page 13 of 45 MAN.270SF.REVA.12222014
INSTRUMENT
REV
REVISIONS
FORPART NO.
APVD BY DRAWN BY
DATE
270 HEATED BLOWBACK
WIRING SCHEMATICS
DATE DESCRIPTION DWN APVD
SCALE SIZE SHEET
NTS D 7 OF 806/23/2006
R. Wells G. Evans
BLOWBACK CONTROL
24VDC OR 115/230VAC
INPUT VOLTAGE
(CUSTOMER TO SPECIFY) -/L2
+/L1
L1 L2
SV20
CNC
TS2=
CNO
TS2=
OR
225ºF
NO
225ºF
NC
(YEL) (BLU)
"FAIL SAFE"
4 5 7 8 12
H N
GND
115/230VAC
5-AMP 50/60HZ
INPUT POWER
TB1
HTR1
CNC
HTR2
LOW TEMP
DRY CONTACTS
USER CONNECTIONS
6 9 10 11
115V 115V
230V
13
CNC
ACCUM. HTR.
115/230VAC
@ 100 WATT
3 2 1 G
115V 115V
230V
G G
VALVE
BRKT
OVEN
CHMBR
TS1=
225°/340º/375°F
NC
BLOWBACK CONTROL
24VDC OR 115/230VAC
INPUT VOLTAGE
(CUSTOMER TO SPECIFY) -/L2
+/L1
L1 L2
SV20
4 5 7 8 11
H/L1
N/L2
GND
115/230VAC
4-AMP 50/60Hz
TEMP. CONTROLLED
INPUT POWER
TB1
HTR1 HTR2
USER CONNECTIONS
6 9 G 10
115V 115V
230V
G 12 13
CNC
3 2 1 G
115V 115V
230V
H/L1
N/L2
115/230VAC
1-AMP 50/50Hz
INPUT POWER
14 15 G
LOW TEMP
DRY CONTACTS
CNC
TS2=
CNO
TS2=
OR
225ºF
NO
225ºF
NC
(YEL) (BLU)
"FAIL SAFE"
VALVE
BRKT
OVEN
CHMBR
GND
ACCUM. HTR.
HTR3
115/230VAC @ 100 WATT
PT100 RTD
TEMPERATURE
SENSOR
P/N 1150-0059
OPTIONAL
PT100 RTD FOR REMOTE FILTER
HEATER TEMPERATURE
MONITORING / CONTROL
1 2 3
TB2
T/C - TYPE "K"
THERMOCOUPLE
P/N 1150-0053
USER PT100 RTD
CONNECTION
USER
THERMOCOUPLE
CONNECTION
+CH
TB2
-AL
THERMOCOUPLE FOR REMOTE
FILTER HEATER TEMPERATURE
MONITORING / CONTROL
TERMINAL BLOCK P/N
CO = 3304-0171
FE = 3304-0172
T/C - TYPE "J"
THERMOCOUPLE
P/N 1150-0054
USER
THERMOCOUPLE
CONNECTION
CO
TB2
FE
THERMOCOUPLE FOR REMOTE
FILTER HEATER TEMPERATURE
MONITORING / CONTROL
TERMINAL BLOCK P/N
+CH = 3304-0167
-AL = 3304-0168
REMOTE TEMPERATURE CONTROLLER
THERMAL SWITCH TEMPERATURE CONTROL
ACCUMULATOR
4
NOTES: 1) FILTER HEATER ROD SPECIFICATIONS (HTR1 & HTR2): 3/8" Ø X 1.5" LG @ 63 WATT/115VAC - U.A.I. P/N 3014-0046 2) OVEN TEMP. CONTROL OPTIONS: NORMALLY CLOSED (NC) BELOW 340°F - 3103-0014 NORMALLY CLOSED (NC) BELOW 375°F - 3103-0061 NORMALLY CLOSED (NC) BELOW 225°F - 3103-0013 NORMALLY CLOSED (NC) BELOW 550°F - 3103-0005 3) LOW TEMP ALARM OPTIONS (TS2): (NOT AVAILABLE WITH 225 OVEN TEMP. CONTROL OPTION) YELLOW (YEL) - NORMALLY CLOSED (NC) BELOW 225ºF - U.A.I. P/N 3103-0013 BLUE (BLU) - NORMALLY OPEN (NO) BELOW 225ºF - U.A.I. P/N 3103-0012 4 USER CHAMBER HEATER CONTROL OPTION (TB1-1) WILL REQUIRE LABEL 5001-0217 TO BE ATTACHED TO BACK PLATE PARALLEL TO TB1; THAT NO TEMPERATURE CONTROL SWITCH BE USED; AND BE REGULATED WITH A TEMPERATURE CONTROLLING DEVICE. VERIFY THAT THE VOLTAGE BEING SUPPLIED MATCHES THE VOLTAGE RATING ON THE SERIAL TAG. 5 FOR VOLTAGE CHANGE IN THE FIELD FROM 115 VAC TO 230 VAC, REMOVE JUMPERS ON TB1 & TB3 AT TERMINAL LOCATIONS 2-3, 4-5, 6-7, 8-9. INSERT JUMPER AT TERMINAL LOCATION 3-4 & 5, 7-8. 6 DIODE NEEDED FOR 24VDC SOLENOIDS P/N 1000-0009. MOV NEEDED FOR VAC SOLENOIDS P/N 1010-1001. 7 PRE TUBE HEATER (HTR4) OPTIONAL Ø 1" BAND HEATER P/N 3014-0041. DO NOT USE IN HAZARDOUS AREA UNITS. FIELD TO WIRE
5
5
CNC
TS1= 550ºF
NC
270
6
6
DRAWING NO.
P1082
ECO#
ACCUM. TS
ACCUM. TS
7
HTR4 (OPTIONAL)
7
HTR4 (OPTIONAL)
M 12/17/13 Revise 230Vac Electrical MW EG
1898
5200 Convair Drive Carson City, NV 89706 PH(775)883-2500 FAX [phone]
Electrical Connections Model 270SF

Page 14 of 45 Page 15 of 45
MAN.270SF.REVA.12222014
INSTRUMENT
REV
REVISIONS
FORPART NO.
APVD BY DRAWN BY
DATE
270 HEATED BLOWBACK & ENCLOSURE
HEATER WIRING SCHEMATICS
DATE DESCRIPTION DWN APVD
SCALE SIZE SHEET
NTS D 8 OF 806/23/2006
R. Wells G. Evans
270
DRAWING NO.
P1082
ECO#
5200 Convair Drive, Carson City , Nevada 89706 [phone]
BLOWBACK CONTROL
24VDC OR 115/230VAC
INPUT VOLTAGE
(CUSTOMER TO SPECIFY) -/N/L2
+/H/L1
L1 L2
SV20
CNC
TS2=
CNO
TS2=
OR
225ºF
NO
225ºF
NC
(YEL) (BLU)
"FAIL SAFE"
4 5 7 8 14
H N
GND
115/230VAC
4-AMP 50/60HZ
INPUT POWER
TB1
HTR1
CNC
HTR2
LOW TEMP
DRY CONTACTS
USER CONNECTIONS
6 9 12 13
115V 115V
230V
15
CNC
ACCUM. HTR.
115/230VAC
@ 100 WATT
3 2 1 G
115V 115V
230V
G G
VALVE
BRKT
OVEN
CHMBR
TS1=
225°/340º/375°F
NC
BLOWBACK CONTROL
24VDC OR 115/230VAC
INPUT VOLTAGE
(CUSTOMER TO SPECIFY) -/L2
+/L1
L1 L2
SV20
4 5 7 8 11
H/L1
N/L2
GND
115/230VAC
4-AMP 50/60Hz
TEMP. CONTROLLED
INPUT POWER
TB1
HTR1 HTR2
USER CONNECTIONS
6 9 G 10
115V 115V
230V
G 12 13
CNC
3 2 1 G
115V 115V
230V
H/L1
N/L2
115/230VAC
3-AMP 50/50Hz
INPUT POWER
14 15 G
LOW TEMP
DRY CONTACTS
C NC
TS2=
C NO
TS2=
OR
225ºF
NO
225ºF
NC
(YEL) (BLU)
"FAIL SAFE"
VALVE
BRKT
OVEN
CHMBR
GND
ACCUM. HTR.
HTR3
115/230VAC @ 100 WATT
PT100 RTD
TEMPERATURE
SENSOR
P/N 1150-0059
OPTIONAL
PT100 RTD FOR REMOTE FILTER
HEATER TEMPERATURE
MONITORING / CONTROL
1 2 3
TB2
T/C - TYPE "K"
THERMOCOUPLE
P/N 1150-0053
USER PT100 RTD
CONNECTION
USER
THERMOCOUPLE
CONNECTION
+CH
TB2
-AL
THERMOCOUPLE FOR REMOTE
FILTER HEATER TEMPERATURE
MONITORING / CONTROL
TERMINAL BLOCK P/N
CO = 3304-0171
FE = 3304-0172
T/C - TYPE "J"
THERMOCOUPLE
P/N 1150-0054
USER
THERMOCOUPLE
CONNECTION
CO
TB2
FE
THERMOCOUPLE FOR REMOTE
FILTER HEATER TEMPERATURE
MONITORING / CONTROL
TERMINAL BLOCK P/N
+CH = 3304-0167
-AL = 3304-0168
REMOTE TEMPERATURE CONTROLLER
THERMAL SWITCH TEMPERATURE CONTROL
ACCUMULATOR
4
NOTES: 1) FILTER HEATER ROD SPECIFICATIONS (HTR1 & HTR2): 3/8" Ø X 1.5" LG @ 63 WATT/115VAC - U.A.I. P/N 3014-0046 2) OVEN TEMP. CONTROL (TS1) OPTIONS: NORMALLY CLOSED (NC) BELOW 340°F - 3103-0014 NORMALLY CLOSED (NC) BELOW 375°F - 3103-0061 NORMALLY CLOSED (NC) BELOW 225°F - 3103-0013 NORMALLY CLOSED (NC) BELOW 550°F - 3103-0005 3) LOW TEMP ALARM OPTIONS (TS2): (NOT AVAILABLE WITH 225 OVEN TEMP. CONTROL OPTION) YELLOW (YEL) - NORMALLY CLOSED (NC) BELOW 225ºF - U.A.I. P/N 3103-0013 BLUE (BLU) - NORMALLY OPEN (NO) BELOW 225ºF - U.A.I. P/N 3103-0012 4 USER CHAMBER HEATER CONTROL OPTION (TB1-1) WILL REQUIRE LABEL 5001-0217 TO BE ATTACHED TO BACK PLATE PARALLEL TO TB1; AND TEMPERATURE BE REGULATED WITH A TEMPERATURE CONTROLLING DEVICE. VERIFY THAT THE VOLTAGE BEING SUPPLIED MATCHES THE VOLTAGE RATING ON THE SERIAL TAG. 5 FOR VOLTAGE CHANGE IN THE FIELD FROM 115 VAC TO 230 VAC, REMOVE JUMPERS ON TB1 & TB3 AT TERMINAL LOCATIONS 2-3, 4-5, 6-7, 8-9. INSERT JUMPER AT TERMINAL LOCATION 3-4 & 5, 7-8. 6 DIODE NEEDED FOR 24VDC SOLENOIDS P/N 1000-0009. MOV NEEDED FOR VAC SOLENOIDS P/N 1010-1001 7). ENCLOSURE HEATER SPECIFICATIONS (HTR3): 120V / 250W: 3014-0066 230V / 500W: 3014-0067 8 PRE TUBE HEATER (HTR4) OPTIONAL Ø 1" BAND HEATER P/N 3014-0041. DO NOT USE IN HAZARDOUS AREA UNITS. FIELD TO WIRE
5
5
CNC
TS1= 550ºF
NC
6
6
CNC
TS3= 225ºF
NC
HTR3
10
CNC
TS3= 225ºF
NC
HTR3
TB1-14
TB1-15
TS3-C HTR3
ACCUM. TS
ACCUM. TS
OR
OR
8
HTR4 (OPTIONAL)
8
HTR4 (OPTIONAL)
M 12/17/13 Revise 230Vac Electrical MW EG
1898
5200 Convair Drive Carson City, NV 89706 PH(775)883-2500 FAX [phone]
11
Electrical Connections Model 270SF

Page 14 of 45 Page 15 of 45 MAN.270SF.REVA.12222014
A
B
C D
A B
C
1234567
8
1234567
D
8
INSTRUMENT
REV
REVISIONS
FORPART NO.
APVD BY DRAWN BY DRAWING NO.
DATE
MODEL 270 S/C F
OPTIONAL WIRING SCHEMATICS
DATE DESCRIPTION DWN APVD
SCALE SIZE SHEET
NTS D 2 OF 4
UNIVERSAL ANALYZERS INC.
1701 South Sutro Terrace Carson City, Nevada 89706 USA
P1083
06/23/2006
R. Wells G. Evans
SV20 - FOR BLOWBACK
(115VAC OR 230VAC)
L N
GTB1-G
TB1-3 TB1-1
BLOWBACK TIMER
CARD JUMPER
CHANGE REQUIRED
FOR SELECTING
115/230VAC
115VAC P/N 3600-0019 230VAC P/N 3600-0054
J4/L1
J2/L2
L1 L2
CNC
TS2=
C NO
TS2=
OR
225ºF
NO
225ºF
NC
(YEL) (BLU)
"FAIL SAFE"
6 7 9 10 14
N/L2
GND
115/230VAC
3-AMP 50/60Hz
INPUT POWER
TB1
HTR1
CNC
HTR2
LOW TEMP
DRY CONTACTS
USER CONNECTIONS
8 11 12 13
115V 115V
230V
15 16
CNC
400ºF
ACCUM. HTR.
115/230VAC
@ 100 WATT
5 4 3 G
115V 115V
230V
1
H/L1
2
COM
MANUAL B.B.
AUTO-OFF
JUMPER OR CLOSE
SWITCH TO INHIBIT
AUTOMATIC BLOWBACK
MANUAL
BLOWBACK
AUTO OFF
MAN. BB
COM
G G
VALVE
BRKT
OVEN
CHMBR
TS1=
225°/340º/375°F
NC
SV20 - FOR BLOWBACK
(115VAC OR 230VAC)
TB1-G TB1-16 TB1-15
L1 L2
5 6 8 9 12
GND
115/230VAC
4-AMP 50/60Hz
TEMP. CONTROLLED
INPUT POWER
TB1
HTR1 HTR2
LOW TEMP
DRY CONTACTS
USER CONNECTIONS
7 G 10 11
115V 115V
230V
G 13 14
CNC
400ºF
ACCUM. HTR.
HTR3
115/230VAC @ 100 WATT
4 3 2
115V 115V
230V
G
H/L1
1
COM
MANUAL B.B.
AUTO-OFF
JUMPER OR CLOSE SWITCH TO INHIBIT
AUTOMATIC BLOWBACK
MANUAL
BLOWBACK
REMOTE TEMPERATURE CONTROLLER
15
N/L2
H/L1
N/L2
GND
115/230VAC
1-AMP 50/60Hz
INPUT POWER
L N
G
J4/L1
J2/L2
AUTO OFF
MAN. BB
COM
16 G
C NC
TS2=
C NO
TS2=
OR
225ºF
NO
225ºF
NC
(YEL) (BLU)
"FAIL SAFE"
OVEN
CHMBR
VALVE
BRKT
4
PT100 RTD
TEMPERATURE
SENSOR
P/N 1150-0059
OPTIONAL
PT100 RTD FOR REMOTE FILTER
HEATER TEMPERATURE
MONITORING / CONTROL
1 2 3
TB2
T/C - TYPE "K"
THERMOCOUPLE
P/N 1150-0053
USER PT100 RTD
CONNECTION
USER
THERMOCOUPLE
CONNECTION
WHT
RED
RED
+CH
TB2
-AL
THERMOCOUPLE FOR REMOTE
FILTER HEATER TEMPERATURE
MONITORING / CONTROL
TERMINAL BLOCK P/N
CO = 3304-0171
FE = 3304-0172
T/C - TYPE "J"
THERMOCOUPLE
P/N 1150-0054
USER
THERMOCOUPLE
CONNECTION
CO
TB2
FE
THERMOCOUPLE FOR REMOTE
FILTER HEATER TEMPERATURE
MONITORING / CONTROL
TERMINAL BLOCK P/N
+CH = 3304-0167
-AL = 3304-0168
BLOWBACK TIMER
CARD JUMPER
CHANGE REQUIRED
FOR SELECTING
115/230VAC
115VAC P/N 3600-0019 230VAC P/N 3600-0054
THERMAL SWITCH TEMPERATURE CONTROL
270
NOTES: 1) FILTER HEATER ROD SPECIFICATIONS (HTR1 & HTR2): 3/8" Ø X 1.5" LG @ 63 WATT/115VAC - U.A.I. P/N 3014-0046 2) OVEN TEMP. CONTROL OPTIONS: NORMALLY CLOSED (NC) BELOW 340°F - 3103-0014 NORMALLY CLOSED (NC) BELOW 375°F - 3103-0061 NORMALLY CLOSED (NC) BELOW 225°F - 3103-0013 NORMALLY CLOSED (NC) BELOW 550°F - 3103-0005 3) LOW TEMP ALARM OPTIONS (TS2): (NOT AVAILABLE WITH 225 OVEN TEMP. CONTROL OPTION) YELLOW (YEL) - NORMALLY CLOSED (NC) BELOW 225ºF - U.A.I. P/N 3103-0013 BLUE (BLU) - NORMALLY OPEN (NO) BELOW 225ºF - U.A.I. P/N 3103-0012 4 USER CHAMBER HEATER CONTROL OPTION (TB1-1) WILL REQUIRE LABEL 5001-0217 TO BE ATTACHED TO BACK PLATE PARALLEL TO TB1; THAT NO TEMPERATURE CONTROL SWITCH BE USED; AND BE REGULATED WITH A TEMPERATURE CONTROLLING DEVICE. VERIFY THAT THE VOLTAGE BEING SUPPLIED MATCHES THE VOLTAGE RATING ON THE SERIAL TAG. 5 FOR VOLTAGE CHANGE IN THE FIELD FROM 115 VAC TO 230 VAC, REMOVE JUMPERS ON TB1 & TB3 AT TERMINAL LOCATIONS 2-3 & 4-5. INSERT JUMPER AT TERMINAL LOCATION 3-4. BLOWBACK CARD NOT CONFIGURABLE. __ __ __ __ __ __ __ __ __ __ FIELD TO WIRE
5
5
CNC
TS1= 550ºF
NC
H 06/22/09 Add Configuration Options RW TM
Electrical Connections Model 270SF

Page 16 of 45 Page 17 of 45
MAN.270SF.REVA.12222014
Process and Piping Connections Model 270SF

Page 16 of 45 Page 17 of 45 MAN.270SF.REVA.12222014
Start-Up
Apply power to the Model 270. Allow fteen to twenty minutes for the lter to come to temperature. This warm-up period is
extremely important to avoid the condensation within the Model 270 lter which would cement the particulates to the lter
surface.
Start the sample pump and determine that the proper amount of sample is being supplied to the instrumentation.
Perform a calibration cycle to insure that the calibration lines are properly installed and sealed. A ow meter should be
installed in the calibration gas supply line to insure that there is at least 10 percent more calibration gas being supplied to
the Model 270 than is being withdrawn as sample. This will ensure that the lter and probe are being properly ooded with
calibration gas. The excess calibration gas will pass through the probe tube into the stack.
Open the instrument air valve to charge the blowback accumulator. Exercise the blowback solenoid valve to insure it is
properly wired. After a blowback cycle, the presence of a slight pulse on the sample tubing in the analyzer shelter and the
momentary dilution of the sample with instrument air is normal and signies that a blowback cycle has occurred.
The optimum time between blowback cycles is to be determined by experience, once a day is sufcient in relatively clean
applications. The requirement could be as frequent as every fteen minutes where the dust and soot levels are severe.
It is better to blowback too often than not often enough. A vacuum gauge in the sample line can be helpful to indicate if
the particulate loading of the lter has started to restrict the ow of sample. The blowback cycle should be initiated before
unacceptable pressure drop occurs.
Shutdown
Before removing power from the unit, ensure lter chamber has been purged of any potentially hazardous components.
To purge the chamber, perform the following:
1. If equipped, perform a manual blowback operation.
2. Close the lter stack isolation valve(s).
3. Ensure no sample is being drawn though the lter chamber. If the sample is being drawn using a sample pump,
turn off the power to the pump or disconnect the sample line.
4. If not already done, disconnect the sample line.
5. Use instrument air or other inert gas, ow ~10 l/m for 15-30 minutes through the lter chamber.
Note: Inert gas can be routed through the chamber via the calibration gas line.
6. After purging is complete, follow the maintenance procedure to change the lter.
7. Cap the sample outlet tube connection and disconnect power from the unit.
Note: If electrical wires are to be disconnected, follow applicable ‘Lock Out/ Tag Out’ requirements.

Page 18 of 45 Page 19 of 45
MAN.270SF.REVA.12222014
Maintenance
CHANGING THE FILTER
CAUTION: THIS PROCEDURE CAN CAUSE SEVERE BURNS. USE PROPER PROTECTION.
Changing the lter in the Model 270 Heated Filter Assembly is extremely easy. Using gloves to protect the hand, grasp
the cap on the end of the lter body opposite the probe and turn it counterclockwise. The cover may be hot to the touch
and may cause burns to the hand if not protected. Removing the cover exposes the lter. The cover is secured to the
assembly with a retainer chain. Reach into the heated oven with pliers to pull out the old lter.
Inspect the O-Rings which are at each end of the lter to ensure they are still elastic and will seal the lter. Replace
O-Rings if they are charred or deformed.
Replace the lter with a new one, again handling it with pliers. Ensure that the lter is pushed in the center of the oven so
that it is in contact with the O-Ring on the far end of the lter. Screw the cap back on the lter body. The lter replacement
procedure is complete.

Page 18 of 45 Page 19 of 45 MAN.270SF.REVA.12222014
Troubleshooting
The following table should give an overview of possible errors and an instruction to check and to repair them (is not valid
for the starting-up period of cooler).
Error Possible reason Check/Repair
No sample gas ow Filter element plugged
Filter chamber exit port plugged
Check/ replace lter element
Remove lter element and inspect exit
port. Exit port will be located at 0° or 180°
depending on conguration
Low temperature alarm Insufcient warm-up time
Power disconnected
Control switch defective
Ensure power has been applied to the unit
for a minimum of 15 minutes
Ensure power is supplied to the unit.
Check by measuring for AC voltage on
TB1-1 & 2
Verify by measuring for a closed circuit
between TB1-1 & 4
High oxygen readings/ low pollutant
readings
Leak Leaking past the lter element O-Rings.
Remove lter element and inspect
O-Rings. There are two O-Rings, one
located at the base of the lter element
and the other in the cap. Ensure both
are pliable and seated in their respective
grooves
Leaking blowback solenoid valve.
Block or disconnect the blowback supply
Loose connection
Verify all ttings are leak free
Low readings during calibration Insufcient calibration gas ow Ensure calibration ow is at least 110% of
the sample gas ow

Page 20 of 45 Page 21 of 45
MAN.270SF.REVA.12222014
* Commissioning Spare Part
Spare Parts
Consumable Spare Parts
Part P/N
O-Ring, Viton 2-208, Filter Element 4904-0015
O-Ring, Viton 2-217, Knob Assembly 4904-0016
Heater Element Paste 8010-0001
Filter Element Ceramic Alumina, 2 µm (Standard) 4980-0007
Filter Element Ceramic Coalesc.1µm Coated 4980-0018
Filter Element Sintered 316SS, 2 µm 4980-0023
Filter Element Ceramic Alumina, 1 µm 4980-0127
Spare Parts
Part P/N
Temp. Switch Heater Control, Normally Closed Below 340°F (171°C) 3103-0014
Knob Assembly 5209-0083
Low Temp. Switch, Normally Closed Below 225°F 3103-0013
Low Temp. Switch, Normally Open Below 225°F (107°C) “Fail Safe” 3103-0012
Valve Check 1/4”Tube X 1/4” Tube 316SS Set At 3 PSI 4955-0148
Optional Parts
Part P/N
Heater Tube Assembly (Incl. Alum Oven, Heater Elements, Temp. Switch’s & Insulation Blanket) 3014-0002
Heater Tube Assembly (Incl. Alum Oven, Heater Elements,Temp. Switch’s & Insulation Blanket)
– “Fail Safe”
3014-0026
Solenoid Valve Blowback, 2-Way 24VDC 4955-0010
Solenoid Valve Blowback, 2-Way 120VAC 4955-0002
Solenoid Valve Blowback, 2-Way 240VAC 4955-0005
Check Valve Calib. Gas, Adjustable Pressure 5150-0014
Accumulator Sphere Blowback, Unheated 4956-0001
Acid Blocker Assembly, Blowback 5110-0015
Gasket Ring For 4” 150# Flange Garlock 9850 1/16” Thk 4903-0001