Watlow EZ-ZONE PM Express User manual

0600-0066-0000 Rev. E Made in the U.S.A.
April 2013 12
34
EZ-ZONE®PM Express
User's Guide
Registered Company
Winona, Minnesota USA
ISO 9001
TOTAL
3 Year Warranty
CUSTOMER
SATISFACTION
Limit Controller
1241 Bundy Boulevard., Winona, Minnesota USA 55987
Phone: [phone], Fax: [phone] http://www.watlow.com
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RESET
RESET
RESET
Safety Information
We use note, caution and warning symbols throughout
this book to draw your attention to important opera-
tional and safety information.
A “NOTE” marks a short message to alert you to an
important detail.
A “CAUTION” safety alert appears with information
that is important for protecting your equipment and
performance. Be especially careful to read and follow
all cautions that apply to your application.
A “WARNING” safety alert appears with informa-
tion that is important for protecting you, others and
equipment from damage. Pay very close attention to
all warnings that apply to your application.
The electrical hazard symbol, (a lightning bolt in a
triangle) precedes an electric shock hazard CAUTION
or WARNING safety statement. Further explanations
follow:
Symbol Explanation
CAUTION – Warning or Hazard
that needs further explanation
than label on unit can provide.
Consult users manual for further
information.
ESD Sensitive product, use proper
grounding and handling techniques
when installing or servicing
product.
Unit protected by double/rein-
forced insulation for shock hazard
prevention.
Do not throw in trash, use proper
recycling techniques or consult
manufacturer for proper disposal.
Unit can be powered with either
alternating current (ac) voltage or
direct current (dc) voltage.
Unit is a Listed device per Un-
derwriters Laboratories®. It has
been evaluated to United States
and Canadian requirements for
Process Control Equipment. UL
61010 and CSA C22.2 No. 61010.
File E185611 QUYX, QUYX7. See:
www.ul.com
Unit is compliant with European
Union directives. See Declaration
of Conformity for further details on
Directives and Standards used for
Compliance.
Unit has been reviewed and
approved by Factory Mutual as a
Temperature Limit Device per FM
Class 3545 standard. See: www.
fmglobal.com
Unit has been reviewed and
approved by CSA International for
use as Temperature Indicating-
Regulating Equipment per CSA
C22.2 No. 24. See: www.csa-
international.org
Warranty
This EZ-ZONE®PM is manufactured by ISO 9001 regis-
tered processes and is backed by a three year warranty
to the first purchaser for use, providing that the units
have not been misapplied. Watlow's obligations here-
under, at Watlow's option, are limited to replacement,
repair or refund of purchase price, and parts which
upon examination prove to be defective within the war-
ranty period specified. This warranty does not apply
to damage resulting from transportation, alteration,
misuse or abuse. The purchaser must use Watlow parts
to maintain all listed ratings.
Technical Assistance
You can get assistance from your local Watlow rep-
resentative (see back cover), send an email with your
questions to: [email protected] or dial +1
[phone] between 7 a.m. and 5 p.m. Central
Standard Time (CST) and ask for an Applications En-
gineer. Please have the following information available
when calling:
• Complete model number
• All configuration information
• User's Manual
• Factory Page
The EZ-ZONE PM Controller User’s Guide is copyrighted
by Watlow Electric, Inc., © April 2013 with all rights
reserved. The EZ-ZONE PM is covered by U.S. Patent
No. 6,005,577 and Patents Pending
Product Overview
The EZ-ZONE PM Express single loop Limit controller is
available in 1/4, 8th, 16th or 32nd DIN panel-mount pack-
ages. Ordering options include high or low voltage units
with up to two outputs.
Installation and Wiring Dimensions 1/16 DIN (PM6)
1/16 DIN (PM6) Recommended Panel Spacing
1/32 DIN (PM3) Recommended Panel Spacing
21.6 mm
(0.85 in)
minimum
21.6 mm
(0.85 in) 21.5 mm
(0.85 in)
21.6 mm
(0.85 in)
minimum
panel thickness 1.53 to 9.52 mm
(0.060 to 0.375 in)
Side
Front
Top
Dimensions 1/32 DIN (PM3)
15.9 mm
(0.63 in) 101.6 mm
(4.00 in)
31.2 mm
(1.23 in)
53.3 mm
(2.10 in)
30.9 mm
(1.22 in)
Side Front
Top
15.8 mm
(0.62 in) 101.6 mm
(4.00 in)
51.2 mm
(2.02 in)
53.3 mm
(2.10 in)
53.3 mm
(2.10 in)
22.2 to 22.5 mm
(0.87 to 0.89 in)
44.96 to 45.47 mm
(1.77 to 1.79 in)
44.96 to 45.47 mm
(1.77 to 1.79 in)
44.96 to 45.47 mm
(1.77 to 1.79 in)

Dimensions 1/4 DIN (PM4) Dimensions
Dimensions 1/8 DIN (PM8) Vertical Dimensions
1/8 DIN (PM8) Vertical - Recommended Panel Spacing
Dimensions 1/8 DIN (PM9) Horizontal Dimensions
1/8 DIN (PM9) Horizontal Recommended Panel Spacing
56
78
92.00 to 92.80 mm
(3.62 to 3.65 in)
44.96 to 45.60 mm
(1.77 to 1.79 in)
panel thickness 1.53 to 9.52 mm
(0.060 to 0.375 in)
21.6 mm
(0.85 in)
Minimum
21.6 mm
(0.85 in)
Minimum
53.34 mm
(2.10 in)
100.33 mm
(3.95 in)
15.75 mm (0.62 in)
10.16 mm
(0.40 in)
54.8 mm
(2.16 in)
1.52 mm (0.06 in)
30.73 mm (1.21 in)
101.60 mm (4.00 in)
53.34 mm
(2.10 in)
100.33 mm
(3.95 in)
53.8 mm
(2.16 in)
15.75 mm (0.62 in)
1.52 mm (0.06 in)
10.16 mm
(0.40 in) 30.73 mm (1.21 in)
101.60 mm (4.00 in)
44.96 to 45.6 mm
(1.77 to 1.79 in)
92.00 to 92.80 mm
(3.62 to 3.65 in)
panel thickness 1.53 to 9.52 mm
(0.060 to 0.375 in)
21.6 mm
(0.85 in)
Minimum
21.6 mm
(0.85 in)
Minimum
100.33 mm
(3.05 in)
100.33 mm
(3.95 in)
15.75 mm (0.62 in)
12.70 mm
(0.50 in)
1.52 mm (0.06 in)
30.73 mm (1.21 in)
100.84 mm (3.97 in)
92.00 to 93.0 mm
(3.62 to 3.65 in)
panel thickness 1.53 to 9.52 mm
(0.060 to 0.375 in)
21.6 mm
(0.85 in)
Minimum
21.6 mm
(0.85 in)
Minimum
92.00 to 93.0 mm
(3.62 to 3.65 in)
Installation
RETENTION COLLAR
CASE
PANEL
BEZEL
GASKET
1. Make the panel cutout using the mounting
template dimensions in this chapter. Insert the
case assembly into the panel cutout.
2. While pressing the case assembly firmly
against the panel, slide the mounting collar
over the back of the controller.
If the installation does not require a NEMA 4X seal,
slide the mounting collar up to the back of the panel
tight enough to eliminate the spacing between the
gasket and the panel.
Slide the mounting col-
lar over the back of the
controller.
Place the blade of a
screwdriver in the
notch of the mount-
ing collar assembly.
3. For a NEMA 4X seal, place the blade of a
screwdriver in the notch of the mounting collar
assembly and push toward the panel while
applying pressure to the face of the controller.
Don't be afraid to apply enough pressure to
properly install the controller.
The seal system is compressed more by mat-
ing the mounting collar tighter to the front
panel (see picture). If you can move the case
assembly back and forth in the cutout, you do
not have a proper seal. The tabs on each side
of the mounting collar have teeth that latch into
the ridges on the sides of the controller. Each
tooth is staggered at a different depth from the
front so that only one of the tabs, on each side,
is locked onto the ridges at a time.
Removing the Mounted Controller from Its Case
1. From the controller's face, pull out the tab on
each side until you hear it click.
Pull out the tab on
each side until you
hear it click.
Grab the unit above
and below the face
and pull forward.
2. Once the sides are released, grab the unit
above and below the face with two hands and
pull the unit out. If it is difficult to pull the unit
out, remove the connectors from the back of
the controller. This should make it easier to
remove.
ÓWarning:
All electrical power to the controller and con-
trolled circuits must be disconnected before
removing the controller from the front panel
or disconnecting other wiring.
Returning the Controller to its Case
1. Ensure that the orientation of the controller is
correct and slide it back into the housing.
2. Using your thumbs push on either side of the
controller until both latches click.
Note:
The controller is keyed so if it feels that it will
not slide back in do not force it. Check the ori-
entation again and reinsert after correcting.
Chemical Compatibility
This product is compatible with acids, weak alkalis,
alcohols, gamma radiation and ultraviolet radiation.
This product is not compatible with strong alkalis,
organic solvents, fuels, aromatic hydrocarbons,
chlorinated hydrocarbons, esters and keytones.

Terminal Definitions
Slot C Terminal Function Model
98
99
power input: ac or dc+
power input: ac or dc-
PM _L_ _ _ - AAAAB _ _
CF
CD
CE
Standard Bus EIA-485 common
Standard Bus EIA-485 T-/R-
Standard Bus EIA-485 T+/R+
PM _L_ _ _ - AAAAB _ _
Slot A
Input 1
T1
S1
R1
S2 (RTD) or current +,
S3 (RTD), thermocouple -, current - or
volts -, thermistor
S1 (RTD), thermocouple + or volts +,
thermistor
Universal Sensor
input 1: all configurations
Outputs Terminal Function Configuration
1 2
X1
W1
Y1
common (Any switched dc output can
use.)
dc- (open collector)
dc+
Switched dc/open collector, output 1:
PM _L_ (C) _-_ AAAB _ _
L1
K1
J1
normally open
common
normally closed
Mechanical Relay 5 A, Form C, output 1:
PM _L_ (E) _-_ AAAB _ _
L2
K2
normally open
common
Mechanical Relay 5 A, Form A, output 2:
PM _L_ _ (J)-_ AAAB _ _
910
11 12
Power
Power
power
power
98
99
CF
CD
CE
Slot C
fuse
• 47 to 63 Hz
• 10VA maximum power consumption (PM3 and PM6)
• 14VA maximum power consumption (PM4, 8 and 9)
Low Power
• 12 to 40VÎ(dc)
• 20 to 28VÅ(ac) Semi Sig F47
High Power
•85to264VÅ(ac)
•100to240VÅ(ac)SemiSigF47
ÓWarning:
Use National Electric (NEC) or other country-
specific standard wiring and safety practices when
wiring and connecting this controller to a power
source and to electrical sensors or peripheral
devices. Failure to do so may result in damage
to equipment and property, and/or injury or loss
of life.
Note:
Maximum wire size termination and torque
rating:
• 0.0507 to 3.30 mm2 (30 to 12 AWG) single-
wire termination or two 1.31 mm2 (16 AWG)
• 0.8 Nm (7.0 lb.-in.) torque
Note:
Adjacent terminals may be labeled differently,
depending on the model number.
Note:
To prevent damage to the controller, do not con-
nect wires to unused terminals.
Note:
In the graphics below notice that the Slot A connector does not show labeling for the outputs. Labeling
for Slot A outputs is based on the controller part number.
C
A
T1 S1 R1Output 1 Output 2
CF CD CE
98 99
PM3
C
A
Output 2
Output 1
B
98
99
CF
CD
CE
T1
S1
R1
PM6
PM4
A
Output 2
Output 1
B
Output 3 Output 4 Input 2
D
Digital I/O 7 - 12
E
Communications Card
C
98
99
CF
CD
CE
T1
S1
R1
A
Output 2
Output 1
BDEC
98
99
CF
CD
CE
T1
S1
R1
PM9
PM8
C
E
A
Output 2
Output 1
B
Output 3 Output 4 Input 2
T1
S1
R1
98
99
CF
CD
CE
D
Digital I/O 7 - 12
D
Note:
In the drawings below for each input notice that the Slot A connector labeling is identified.
Note:
When using a 2 wire RTD, jumper S1 and T1 together
Inputs
All inputs shown below represent input 1 (the only input) and are to be connected to slot A of the Limit
Control.
Process Volts and Amperes
• 4 to 20 mA @ 100 Ω input impedance
• 0 to 10VÎ (dc) @ 20 kΩ input impedance
• Scalable
Resistance Temperature Detector (RTD)
• Platinum, 100 Ω @ 0°C
• Calibration to DIN curve (0.00385 Ω/Ω/°C)
• 20 Ω total lead resistance
• RTD excitation current of 0.09 mA typical.
Each ohm of lead resistance may affect the
reading by 0.03°C.
• For 3-wire RTDs, the S1 lead must be con-
nected to R1.
• For best accuracy use a 3-wire RTD to com-
pensate for lead-length resistance. All three
lead wires must have the same resistance.
Thermocouple
• 2 KΩ maximum source resistance
• >20 MΩ input impedance
• 3 microampere open-sensor detection
• Thermocouples are polarity sensitive. The
negative lead must be connected to S1.
• To reduce errors, the extension wire for ther-
mocouples must be of the same alloy as the
thermocouple.
Thermistor
• >20 MΩ input impedance
• 3 microampere open-sensor detection
-
+
Thermocouple
S1
R1
T1
S1
R1
S1
S2
S3
RTD
2 or 3 Wire
-
+
-
+
S1
R1
T1
S1
Process
Volts
Process
Amperes
Thermistor
S1
R1

13 14
15 16
Quencharc Note:
Switching pilot duty inductive loads (relay coils, solenoids, etc.) with the mechanical relay, or open
collector output options requires use of an R.C. suppressor (Quencharc).
Open Collector
Load
Power
Supply
dc -
common
X1
W1
PM _ L _ (C) _ - A A A A B _ _
L1
J1
K1
normally open
common
normally closed
Mechanical Relay
Form C
PM _ L _ (E) _ - A A A A B _ _
Outputs
Please note all outputs are connected exclusively to slot A. Output availability is based on the part number of
your Limit Control.
Note:
In the drawings below for each output notice that the Slot A connector labeling is identified with the corre-
sponding part number below.
W1
dc +
dc -
Y1
common
Switched DC
PM _ L _ (C) _ - A A A A B _ _
L2
K2
Mechanical Relay
Form A
PM _ L _ _ (J) - A A A A B _ _
Outputs (cont.)
Switched DC
• 22 to 32VÎ(dc) @ 30mA maximum supply current
• short circuit limited to <50 mA
• 22 to 32VÎ(dc) open circuit voltage
• Use dc- and dc+ to drive external solid-state relay.
• DIN-a-mite compatibility is for output 1 only.
- single-pole: up to 4 in parallel or 4 in series
- 2-pole: up to 2 in parallel or 2 in series
- 3-pole: up to 2 in series
Open Collector
• 100 mA maximum output current sink
• 30VÎ(dc) maximum supply voltage
• Use an external power supply to control a dc load, with the load positive to the positive of the power
supply, the load negative to the open collector and common to the power supply negative.
See Quencharc note.
Mechanical Relay Form C
• 5 A at 240VÅ (ac) or 30VÎ(dc) maximum resistive load, output 1
• 20 mA at 24V minimum load
• 125 VA pilot duty at 120/240VÅ (ac), 25 VA at 24VÅ(ac)
• 100,000 cycles at rated load
• Output does not supply power.
• for use with ac or dc
See Quencharc note.
Mechanical Relay Form A
• 5 A at 240VÅ (ac) or 30VÎ(dc) maximum resistive load, output 2
• 20 mV at 24V minimum load
• 125 VA pilot duty @ 120/240VÅ (ac), 25 VA at 24VÅ(ac)
• 100,000 cycles at rated load
• Output does not supply power.
• for use with ac or dc
See Quencharc note (previous page).
Zone Display:
When [2onE] (found in the
Factory Page) is set to on, indicates
the controller zone.
[1] to [9] = zones 1 to 9
[A] = zone 10 [E] = zone 14
[b] = zone 11 [F] = zone 15
[C] = zone 12 [h] = zone 16
[d] = zone 13
Lower Display:
Indicates the current state of the
limit [Fail] or [Safe].
EZ Key:
Performs reset function.
RESET Key:
Press to reset limit after a trip con-
dition has been cleared.
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Temperature Units Indicator
Lights:
Indicates whether the tempera-
ture is displayed in Fahrenheit
or Celsius.
Output Activity:
Number lights indicate activity
of outputs 1 and 2.
Communications Activity:
Flashes when another device
is communicating with this
controller.
Upper Display:
On power up, displays
the process value, otherwise
displays the value of the
parameter in the lower
display.
Up and Down Keys: ¿¯
When in a menu scrolls through
available options for any given
prompt. In other menus can
change set points and modify
the upper display to a higher or
lower value.
Keys & Displays 16th DIN LIMIT Controller
Advance Key:
‰
Advances through
parameter prompts.
Left Display:
On power up, displays the pro-
cess value, otherwise displays
the value of the parameter in
the right display.
With a few exceptions, all of the key functions described above for the 16th DIN LIMIT apply to the 32nd
DIN LIMIT controller as well.
Right Display:
Indicates the current state
of the limit [Fail] or
[Safe].
An active message will cause the display to toggle
between the normal settings and the active mes-
sage in the upper or left display and [Attn] in
the lower or right display.
Your response will depend on the message
and the controller settings. If the message is
generated by a latched alarm or limit condition,
the message can be silenced [Sil] or cleared
[CLr] by simply pushing the reset key
when the condition no longer exists.
[AL;L1] Alarm 1 Low (sensor input below low
alarm set point)
[AL;h1] Alarm 1 High (sensor input above high
alarm set point)
Alarm Error 1
[AL;E1] Alarm 1 Error (alarm state cannot be
determined due to lack of sensor input)
[Er;i1] Error Input 1 (sensor is not providing a
valid signal to the control)
[Li;L1] Limit Low 1 (sensor input below low
limit set point)
[Li;h1] Limit High 1(sensor input above high
limit set point)
[Li;E1] Limit Error 1 (limit state cannot be
determined due to lack of sensor input, limit
will trip
32nd DIN LIMIT Controller
2
1
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Responding to a Displayed Message
Upon power-up, the upper display will briefly indicate the firmware revision and the
lower display will show PMb. The "b" in this case, reflects the B in the model number.
Note:
Output 2 is always the limit.
PM3
PM6
Keys & Displays for 1/8th or 1/4 DIN PID Controllers
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RESET
PM8
®
RESET
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PM9
®
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PM4
Note:
As shown in the graphics on the following page the PM4, 8 and 9 controls will include two "EZ" buttons (EZ1
and EZ2). The button identified as EZ1 is equivalent to the EZ button described above where the button identi-
fied as EZ2 has no functionality. Assuming the issue that caused the limit to trip has been rectified pushing
the EZ1 will reset the limit as described for the Reset button above. All other buttons found on these controls,
maintain the same functionality as described above for the 16th DIN.

Operations Menu
Display Parameter Name Description Range
Defaults are shown bold
[`LL;S]
[ LL.S]
Limit Low Set Point
Set the low process value that will trigger the limit.
Appears if: Limit sides set to low or both.
-1,999.000 to 9,999.000°F or units
-1,128.000 to 5,537.000°C
Units, 0.0°F or -18.0°C
[`Lh;S]
[ Lh.S]
Limit High Set Point
Set the high process value that will trigger the limit.
Appears if: Limit sides set to high or both.
-1,999.000 to 9,999.000°F or units
-1,128.000 to 5,537.000°C
Units, 0.0°F or -18.0°C
[`A;Lo]
[ A.Lo]
Alarm Low Set Point
Process - set the process value that will trigger a low
alarm.
Appears if: Alarm Type (A.ty) is set to Process Alarm
-1,999.000 to 9,999.000°F or units
-1,128.000 to 5,537.000°C
Units, 32.0°F or 0.0°C
[`A;hi]
[ A.hi]
Alarm High Set Point
Process - set the process value that will trigger a high
alarm.
Appears if: Alarm Type (A.ty) is set to Process Alarm
-1,999.000 to 9,999.000°F or units
-1,128.000 to 5,537.000°C
Units, 300.0°F or 150.0°C
[`i;CA]
[ i.CA]
Calibration Offset
Set an offset value for a process output.
Appears if: Always
-1,999.000 to 9,999.000°F or units
-1,110.555 to 5,555.000°C
0.0
‰
[````] PAr1
[````] PAr2
[`ll;s] Limit Low Set Point
[`lh;s] Limit High Set Point
[`A;lo] Alarm Low Point
[`A;hi] Alarm High Point
[`i;Ca] Calibration Offset
Operations Menu
Upon power up of the control,
using the advance key will scroll
through the various prompts found
in the Operations Menu. At any
point within the Operations menu
to return to the default display push
the Reset key.
17 18
19 20
Setup Menu
Display Parameter Name Description Range (Defaults are shown bold)
LoC
[LoC]
Lockout Menu
Set the security clearance level. The user can access the selected level and
all lower levels.
Appears if: Always
1 to 5
1 Operations Menu (read only)*
2 Operations Menu (Set point R/W)*
3 Operations Menu (Set point R/W, Control Mode R/W)*
4 Operations Menu R/W access)*
5 Operations Menu and Setup Menu full R/W access
*You can change the security level at any level
[Sen]
[ SEn]
Sensor Type
Set the analog sensor type to match the device wired to this input.
Appears if: Always.
[``tC]Thermocouple[`MA]Milliamps dc
[uolT]Volts dc [r0;1H]RTD 100 Ω
[Lin]
[ Lin]
Linearization
Set the linearization to match the thermocouple type wired to this input.
For example, select[```H]for a type K thermocouple.
Appears if: Sensor Type is set to Thermocouple.
[`b] B[`J] J [`t] T
[`c] C [`H] K
[`d] D [`n] N
[`e] E [`r] R
[`f] F [`S] S
[``t;C]
[t.C]
Thermistor Curve
Select a curve to apply to the thermistor input.
[```A] CurveA,[```b] CurveB,[```C] CurveC
[CUSt] Custom
[``r;r]
[r.r]
Resistance Range
Set the maximum resistance of the thermistor input.
[```5] 5K,[``10] 10K,[``20] 20K,[``40] 40K
[`dEC]
[ dEC]
Decimal
Set the precision of the displayed value.
Appears if: Always.
[```0] Whole
[``0;0] Tenths
[`0;00] Hundredths
[`C_F]
[ C_F]
Display Units
Select which units will be displayed.
Appears if: Always.
[```F] °F
[```C] °C
[`r;Lo]
[ r.Lo]
Limit Set Point - Range Low
Sets the low limit of the set point adjustment using a T/C and RTD; scales for
process inputs.
Appears if: Always.
-1,999.00 to 9,999.000 °F or Units
-1,110.555 to 5,555.000 °C
0.0
[`r;hi]
[ r.hi]
Limit Set Point - Range High
Sets the high limit of the set point adjustment using a T/C and RTD; scales for
process inputs.
Appears if: Always.
-1,999.00 to 9,999.000 °F or Units
-1,110.555 to 5,555.000 °C
[`fn1]
[ fn1]
Function of Output 1
Select which function will drive this output.
Appears if: Always.
[`oFF]Off, [LiM]Limit*, [ALM]Alarm
*Note:
Switched DC/Open Collector option should only be used to control an
external mechanical relay if Limit function is selected.
‰
[`loC] Lockout Menu
[`SEn] Sensor Type
[`Lin] Linearization
[``t;C] Thermistor Curve
[``r;r] Resistance Range
[`deC] Decimal
[`C_F] Display Units
[`r;lo] Limit Set Point Range Low
[`r;hi] Limit Set Point Range High
[`fn1] Function Output One
[`fn2] Function Output Two
[`l;sd] Limit Sides
[`l;hy] Limit Hysteresis
[`A;ty] Alarm Type
[`A;hy] Alarm Hysteresis
[`A;lg] Alarm Logic
[`A;lA] Alarm Latching
[`A;bl] Alarm Blocking
[`A;si] Alarm Silencing
[A;dsp] Alarm Display
[par1] Upper or Left Display
[par2] Lower or Right Display
[`Ad;s] Zone Address
Setup Menu
To enter the Setup Menu push and hold
the up and down arrow keys for ap-
proximately 3 seconds. Once there, push
the green advance key to scroll through
to the prompt of choice and then use
the up and down arrow keys to change
the range. At any point within the Setup
menu to return to the default display
push the Reset key.

Setup Menu
Display Parameter Name Description Range (Defaults are shown bold)
[`fn2]
[ fn2]
Function of Output 2
Select which function will drive this output.
Appears if: Always.
[`LiM]Limit
Note:
Output 2 (only) is FM approved as a limit.
[`L;Sd]
[ L.Sd]
Limit Sides
Select which side or sides of the process value will be monitored.
Appears if: Always.
[both] Both
[high] High
[LoW] Low
[`L;hy]
[ L.hy]
Limit Hysteresis
Set the hysteresis for the limit function. This determines how far into the safe
range the process value must move before the limit turns the output back on.
Appears if: Always.
0.001 to 9,999.0°F or units
0.001 to 5,555.0°C
Units, 3.0°F or 2°C
[`A;ty]
[ A.ty]
Alarm Type
Select how the alarm will or will not track the set point.
Appears if: Always.
[`oFF] Off
[PR;AL] Process Alarm
[`A;hy]
[ A.hy]
Alarm Hysteresis
Set the hysteresis for an alarm. This determines how far into the safe region the
process value needs to move before the alarm can be cleared.
Appears if: When alarm type is set to process.
0.001 to 9,999.000°F or units
0.001 to 5,555.000°C
Units, 1.0°F or 1.0°C
[a;lg]
[A.Lg]
Alarm Logic
Select what the output condition will be during the alarm state.
Appears if: Always
[`a;lC] Close on Alarm
[`a;lo] Open on alarm
[`A;LA]
[ A.LA]
Alarm Latching
Turn alarm latching on or off. A latched alarm has to be turned off by the user.
Appears if: When alarm type is set to process.
[nLAt] Non-Latching
[`LAt] Latching
`A;bL]
[ A.bL]
Alarm Blocking
Select when an alarm will be blocked. After startup and/or after the set point
changes, the alarm will be blocked until the process value enters the normal
range.
Appears if: When alarm type is set to process.
[`oFF] Off
[`Str] Startup
[StPt] Set Point
[both] Both
[`A;si]
[ A.Si]
Alarm Silencing
Turn alarm silencing on to allow the user to disable the output tied (configured)
to this alarm
Appears if: Always.
[`oFF] Off
[``on] On
[A;dSP]
[A.dSP]
Alarm Display
Display an alarm message when an alarm is active.
Appears if: When alarm type is set to process.
[`oFF] Off
[``on] On
[PAr1]
[PAr1]
Upper or Left Display
Select parameter to display.
Appears if: Always.
[AC;Pu] Active Process Value
[none] None
‰
[`loC] Lockout Menu
[`SEn] Sensor Type
[`Lin] Linearization
[``t;C] Thermistor Curve
[``r;r] Resistance Range
[`deC] Decimal
[`C_F] Display Units
[`r;lo] Limit Set Point Range Low
[`r;hi] Limit Set Point Range High
[`fn1] Function Output One
[`fn2] Function Output Two
[`l;sd] Limit Sides
[`l;hy] Limit Hysteresis
[`A;ty] Alarm Type
[`A;hy] Alarm Hysteresis
[`A;lg] Alarm Logic
[`A;lA] Alarm Latching
[`A;bl] Alarm Blocking
[`A;si] Alarm Silencing
[A;dsp] Alarm Display
[par1] Upper or Left Display
[par2] Lower or Right Display
[`Ad;s] Zone Address
Setup Menu
To enter the Setup Menu push and hold
the up and down arrow keys for ap-
proximately 3 seconds. Once there, push
the green advance key to scroll through
to the prompt of choice and then use the
up and down arrow keys to change the
range. At any point within the Operations
menu to return to the default display
push the Reset key.
21 22
23 24
‰
[`loC] Lockout Menu
[`SEn] Sensor Type
[`Lin] Linearization
[``t;C] Thermistor Curve
[``r;r] Resistance Range
[`deC] Decimal
[`C_F] Display Units
[`r;lo] Limit Set Point Range low
[`r;hi] Limit Set Point Range High
[`fn1] Function Output One
[`fn2] Function Output Two
[`l;sd] Limit Sides
[`l;hy] Limit Hysteresis
[`A;ty] Alarm Type
[`A;hy] Alarm Hysteresis
[`A;lg] Alarm Logic
[`A;lA] Alarm Latching
[`A;bl] Alarm Blocking
[`A;si] Alarm Silencing
[A;dsp] Alarm Display
[par1] Upper or Left Display
[par2] Lower or Right Display
[`Ad;s] Zone Address
Setup Menu
To enter the Setup Menu push and hold
the up and down arrow keys for ap-
proximately 3 seconds. Once there, push
the green advance key to scroll through
to the prompt of choice and then use the
up and down arrow keys to change the
range. At any point within the Operations
menu to return to the default display
push the Reset key.
Setup Menu
Display Parameter Name Description Range (Defaults are shown bold)
[PAr2]
[PAr2]
Lower or Right Display
Select parameter to display.
Appears if: Always.
[`Ls;t] Limit State [`A;hi] Alarm High Set Point
[`Lh;S] Limit High Set Point [`A;lo] Alarm Low Set Point
[`LL;S] Limit Low Set Point [none]
None
[`ad;s]
[ Ad.S]
Zone Address - Standard Bus Communication
Set zone address from 1-16.
Appears if: Always.
1-16
1

25 26
27 28
Specifications
Line Voltage/Power
• All voltage levels represent minimums and maximums
• 85 to 264V~(ac), 47 to 63Hz
• 20 to 28VÅ(ac), +10/-15 percent; 50/60Hz, ±5 percent
• 12 to 40VÎ(dc)
• 10VA maximum power consumption (PM3 and PM6)
• 14VA maximum power consumption (PM4, 8 and 9)
• Data retention upon power failure via nonvolatile memory
• Compliant with SEMI F47-0200, Figure R1-1 voltage sag requirements @ 24VÅ(ac) or higher
Environment
• -18 to 65°C (0 to 149°F) operating temperature
• -40 to 85°C (-40 to 185°F) storage temperature
• 0 to 90 percent RH, non-condensing
Accuracy
• Calibration accuracy and sensor conformity: ±0.1 percent of span, ±1°C @ the calibrated ambient tempera-
ture and rated line voltage
• Type S, 0.2 percent
• Type T, below -50°C; 0.2 percent
• Calibration ambient temperature @ 25°C ±3°C (77°F ±5°F)
• Accuracy span: 540°C (1000°F) minimum
• Temperature stability: ±0.1°C/°C (±0.1°F/°F) rise in ambient maximum
Agency Approvals
• cULus®UL/EN/CSA C22.2 No. 61010-1 Listed File E185611
• cULus®ANSI/ISA 12.12.01-2007, CSA-C22.2 No.213-1987, Class 1 Division 2 Groups A, B, C and D,
Temperature Code T4A, File E184390 (optional)
• UL®50, 4X indoor locations, NEMA 4X, IP66 front seal
• CSA C22.2 No. 24 File 158031 (1/32 and 1/16 DIN sizes)
• CE, RoHS by design, W.E.E.E.
• FM Class 3545 File 3029084
• SEMI F47-0200
Serial Communications
• Isolated communications
• Standard Bus Conguration Protocol
Wiring Termination—Touch-Safe Terminals
• Input, power and controller output terminals are touch safe removable 12 to 22 AWG
• Use 75°C, Cu conductor only
Universal Input
• Thermocouple, grounded or ungrounded sensors
• >20MΩinput impedance
• Maximum of 2KΩ source resistance (applies to T/C only)
• RTD 2- or 3-wire, platinum, 100Ω @ 0°C calibration to DIN curve (0.00385 Ω/Ω/°C)
• Process, 4-20mA @ 100Ω, or 0-10VÎ(dc) @ 20kΩ input impedance; scalable
Thermistor Input (Not included with Universal Input)
Thermistor Input
Input Type Max Error
@ 25 Deg C
Accuracy
Range Low
Accuracy
Range High Units
Thermistor, 5K range ±5 0 5000 Ohms
Thermistor, 10K range ±10 0 10000 Ohms
Thermistor, 20K range ±20 0 20000 Ohms
Ordering Part Number (Part number digits 1 through 14) PMXLXXX-AAAABXX
All Models include: *Universal Sensor Input, Standard Bus Configuration Communications
*Dual line Red over Green 7 Segment displays
Package Size (Digit #3)
3 = 1/32 DIN
6 = 1/16 DIN
8 = 1/8 DIN vertical
9 = 1/8 DIN horizontal
4 = 1/4 DIN
Primary Function (Digit #4)
L = Limit Controller w/ Universal Input
Power Supply (Digit #5)
1 = 100-240 VAC
3 = 12-28 VAC/DC
Output 1 and 2 Hardware Options (Digits #6 and #7)
Output 1 Output 2
AJ = None Mechanical relay 5A, Form A
CJ = Switched dc/open collector Mechanical relay 5A, Form A
EJ = Mechanical Relay 5 Amp form C Mechanical relay 5A, Form A
Future Options (Digits #8 thru #11)
AAAA = None
Menu Type (Digits #12)
B = Express
Additional Options (Digits #13 and #14)
AA = Standard EZ-ZONE face plate
AB = EZ-ZONE logo and no Watlow name
AC = No logo and no Watlow name
Thermistor Input (cont.)
Thermistor, 40K range ±40 0 40000 Ohms
• 0to40KΩ,0to20KΩ,0to10KΩ,0to5KΩ
• 2.252KΩand10KΩbaseat77°F(25°C)
• Linearizationcurvesbuiltin
• ThirdpartyThermistorcompatibilityrequirements
Base R @
25C
Alpha
Techniques Beta THERM YSI Prompt [``tC]
2.252K Curve A 2.2K3A 004 A
10K Curve A 10K3A 016 B
10K Curve C 10K4A 006 C
Functional Operating Range
• Type B: -50 to 1816°C (-58 to 3301°F)
• Type C: 0 to 2315°C (32 to 4199°F)
• Type D: 0 to 2315°C (-328 to 4199°F)
• Type E: -270 to 1000°C (-454 to 1832°F)
• Type F: 0 to 1343°C (32 to 2449°F)
• Type J: -210 to 1200°C (-346 to 2192°F)
• Type K: -270 to 1371°C (-454 to 2500°F)
• Type N: -200 to 1300°C (-328 to 2372°F)
• Type R: -50 to 1767°C (-58 to 3213°F)
• Type S: -50 to 1767°C (-58 to 3213°F)
• Type T: -270 to 400°C (-454 to 752°F)
• RTD (DIN): -200 to 800°C (-328 to 1472°F)
• Process: -1999 to 9999 units
Output Hardware
• Switched dc
- 22 to 32VÎ(dc) @ 30mA
• Open collector, maximum sink current 100 mA, @ 30VÎ(dc)
• Electromechanical relay, Form C, 5A, 24 to 240VÅ(ac) or 30VÎ(dc) maximum, resistive load, 100,000
cycles at rated load
• Electromechanical relay, Form A, 5A, 24 to 240VÅ(ac) or 30VÎ(dc) maximum, resistive load, 100,000
cycles at rated load
Operator Interface
• Dual 4 digit, 7 segment LED displays
• Typical display update rate 1Hz
• Advance, RESET, up and down keys plus an EZ-Key/s (not available in 1/32 DIN)
Declaration of Conformity
CE DOC EZ-ZONE PM-06-09
Series EZ-ZONE®PM
WATLOW an ISO 9001 approved facility since 1996.
1241 Bundy Blvd.
Winona, MN 55987 USA
Declares that the following product:
Designation: Series EZ-ZONE®PM (Panel Mount)
Model Numbers: PM (3, 6, 8, 9 or 4)(Any Letter or number) – (1, 2, 3 or 4)(A, C, E, F or
K) (A, C, H, J or K)(Any letter or number) – (Any letter or number)(A, C,
E, F or K)(A, C, H, J or K) (Any three letters or numbers)
Classification: Temperature control, Installation Category II, Pollution degree 2, IP66
Rated Voltage and Frequency: 100 to 240 V~ (ac 50/60 Hz) or 15 to 36 V�dc/ 24 V~ac 50/60 Hz
Rated Power Consumption: 10 VA maximum PM3, PM6 Models.
14 VA maximum PM8, PM9, PM4 Models
Meets the essential requirements of the following European Union Directives by using the relevant
standards show below to indicate compliance.
2004/108/EC Electromagnetic Compatibility Directive
EN 61326-1 2006 Electrical equipment for measurement, control and laboratory
use – EMC requirements (Industrial Immunity, Class B
Emissions).
EN 61000-4-2 1996 +A1,A2 Electrostatic Discharge Immunity
EN 61000-4-3 2006 Radiated Field Immunity 10V/M 80–1000 MHz, 3 V/M 1.4–2.7 GHz
EN 61000-4-4 2004 Electrical Fast-Transient / Burst Immunity
EN 61000-4-5 2006 Surge Immunity
EN 61000-4-6 1996 +A1,A2,A3 Conducted Immunity
EN 61000-4-11 2004 Voltage Dips, Short Interruptions and Voltage Variations Immunity
EN 61000-3-2 2006 Harmonic Current Emissions
EN 61000-3-312005 Voltage Fluctuations and Flicker
SEMI F47 2000 Specification for Semiconductor Sag Immunity Figure R1-1
1For mechanical relay loads, cycle time may need to be extended up to 160 seconds to meet flicker
requirements depending on load switched and source impedance.
2006/95/EC Low-Voltage Directive
EN 61010-1 2001 Safety Requirements of electrical equipment for measurement,
control and laboratory use. Part 1: General requirements
Compliant with 2002/95/EC RoHS Directive
Per 2002/96/EC W.E.E.E Directive Please Recycle Properly.
Raymond D. Feller III Winona, Minnesota, USA
Name of Authorized Representative Place of Issue
General Manager June 2009
Title of Authorized Representative Date of Issue
Signature of Authorized Representative
Specifications (cont.)

How to Reach Us
Corporate Headquarters
Watlow Electric Manufacturing Company
12001 Lackland Road
St. Louis, MO 63146
Sales: 1-800-WATLOW2
Manufacturing Support: 1-800-4WATLOW
Email: [e-mail]
Website: www.watlow.com
From outside the USA and Canada:
Tel: [phone]
Fax: [phone]
Latin America
Watlow de México S.A. de C.V.
Av. Fundición No. 5
Col. Parques Industriales
Querétaro, Qro. CP-76130
Mexico
Tel: [phone]
Fax: [phone]
Europe
Watlow France
Tour d'Asnières.
4 Avenue Laurent Cély
92600 Asnières sur Seine
France
Tél: + 33 (0)1 41 32 79 70
Télécopie: + 33(0)1 47 33 36 57
Email: [e-mail]
Website: www.watlow.fr
Watlow GmbH
Postfach 11 65, Lauchwasenstr. 1
D-76709 Kronau
Germany
Tel: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.watlow.de
Watlow Italy S.r.l.
Viale Italia 52/54
20094 Corsico MI
Italy
Tel: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.watlow.it
Watlow Ibérica, S.L.U.
C/Marte 12, Posterior, Local 9
E-28850 Torrejón de Ardoz
Madrid - Spain
T. [phone]
F. [phone]
Email: [e-mail]
Website: www.watlow.es
Watlow UK Ltd.
Linby Industrial Estate
Linby, Nottingham, NG15 8AA
United Kingdom
Telephone: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.watlow.co.uk
From outside The United Kingdom:
Tel: [phone]
Fax: [phone]
Asia and Pacific
Watlow Singapore Pte Ltd.
16 Ayer Rajah Crescent,
#06-03/04,
Singapore 139965
Tel: [phone] Fax: [phone]
Email: [e-mail] Website: www.watlow.com.sg
Watlow Australia Pty., Ltd.
4/57 Sharps Road
Tullamarine, VIC 3043
Australia
Tel: [phone]
Fax: [phone]
Website: www.watlow.com
Watlow Electric Manufacturing (Shanghai) Company
1118 Fangyuan Road, Anting Industrial Park, Jiading, Shanghai,
PRC 201203
People’s Republic of China
Tel: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.watlow.cn
ዌእዊዙዘንዀኮዐ㪹㆞↩䯍
ᇽ㨀℻掌◒ⅲ䞿◉␔䯭䞿
⥪⦌ኰወ⒴殷椝
Tel: [phone] Fax: [phone]
Email: [e-mail] Website: www.watlow.co.jp
Watlow Japan Ltd.
1-14-4 Uchikanda, Chiyoda-Ku
Tokyo 101-0047
Japan
Tel: [phone] Fax: [phone]
Email: [e-mail] Website: www.watlow.co.jp
Watlow Korea Co., Ltd.
#1406, E&C Dream Tower, 46, Yangpyeongdong-3ga
Yeongdeungpo-gu, Seoul 150-103
Republic of Korea
Tel: [phone] Fax: [phone]
Website: www.watlow.co.kr
Watlow Malaysia Sdn Bhd
No. 14-3 Jalan 2/114
Kuchai Business Centre
Jalan Kuchai Lama
58200 Kuala Lumpur
Malaysia
Tel: [phone] Fax: [phone]
䝵䔈爜榊㳮匰↌㦘棟⏻⚇
浧楓ゑⓜ摠●ₒ影ℛ恾壮㲢󱁻₏
榊崀⍂䦮
Watlow Electric Taiwan Corporation
10F-1 No.189 Chi-Shen 2nd Road Kaohsiung 80143
Taiwan
Tel: [phone] Fax: [phone]
Your Authorized Watlow Distributor
TOTAL
3 Year Warranty
CUSTOMER
SATISFACTION
29 30
31 32