Ashcroft 2074 User manual

I&M008-10109-3/06 dwg. 83B234-01 Rev. B 12/04
Digital
Industrial
Gauge
Operating
Instructions
I&M008-10109-DIG New 8-03 6/28/07 3:55 PM Page 1

– 3 –– 2 –
Congratulations on your purchase of the Ashcroft
®
digital industrial gauge. This feature-packed gauge
offers a menu-driven display for easy customization.
User selectable features include 12 units of measure-
ment, password protected calibration and disable
functions, adjustable bar graph and update rate. A
five digit display for maximum resolution is standard.
Optional 4-20mA output, switching and line- power
add to the versatility of the gauge. With the range
printed on the keypad, Ashcroft digital gauges meet
ASME B40.7 specification. See a complete listing of
product features and specifications on pages 16.
TABLE OF CONTENTS
Quick Reference ............................................4-5
Keypad Functions ..........................................6-8
• ON/OFF KEY
• ZERO/CLEAR KEY
• MIN/MAX KEY (down arrow key)
• MENU KEY
• BACKLITE KEY (up arrow key)
• ENTER KEY
MENU Functions (MENU Mode) ................................8-15
• Engineering Units
• CONFIG Mode
• Set Password
• Recalibration of Gauge
• Zero Key Adjustment
• Disabling Menu Options
• Bar Graph Options
• Auto Off Options
• Update Options for Displayed Pressure
• Dampening Options
• Backlite Options (Backlite Optional)
• Set Switch(es) Option(s) (Switches Optional)
Specifications ................................................16
Ranges ........................................................16
Display Messages ..........................................17
Wiring Diagrams ........................................18-22
Gauge Installation & Maintenance........................24
• Mounting
• Battery Replacement & Installation
I&M008-10109-DIG New 8-03 6/28/07 3:55 PM Page 2

– 5 –– 4 –
Bar graph
% of full scale
Flashing display when unit
pressured below zero
Press to indicate minimum
or maximum pressure
gauge has measured
Press again to return to
pressure units
Press to read menu
While in unit of measurement mode (eg: psi),
press the ZERO CLEAR button to rezero the
gauge. This feature functions when displayed
pressure is within ±5% or 10% of zero value
This bar graph indicates battery level;
the more segments, the closer the
battery is to full charge (only dis-
played on units with battery
Flashing display when unit
pressurized beyond full-scale
UNITS (Pressure)
ENGLISH
INHG
PSI*
INH2O
@ 4°C, 20°C, 60°F
FTW
FTSW
METRIC
BAR
MBAR
KPA
CMH2O
KG/CM2
Press to turn backlite on or off
(backlite optional)
Range on keypad;
complies with ASME B40.7
Press to turn unit on or off
UPDATE RATE
(Pressure measurement
per second)
10x (100 MS)*
5x (200 MS)
2x (500 MS)
1x (1 Sec)
AUTO OFF
(Turns unit off after
option selected)
Never*
2 minutes
5 minutes
15 minutes
30 minutes
CALIBRATE
Zero and span
adjustments,
password
protected
DISABLE
Allows for
“lockout” of
MENU
options
BACKLITE
(Off options)
Never
2 SEC
5 SEC*
15 MIN
30 MIN
DAMPENING
(Takes pressure reading
and averages
process pressure
None*
Avg 2
Avg 4
Avg 6
Avg 8
.88˝ high digital display (4
1
⁄ 2 ˝ case)
.60 high digital display(3˝ case)
*Indicates Default
QUICK REFERENCE
I&M008-10109-DIG New 8-03 6/28/07 3:55 PM Page 4

– 7 –– 6 –
Turns the gauge on and off. When pressing the
ON/OFF key while in the off position, gauge start-
up display first indicates the software version
followed by the model number and gauge pres-
sure range. The gauge will then display indicated
pressure and be ready for use.
Press this key for one second prior to gauge
usage to rezero any initial zero shift. If zero shift
is greater than programmed zero allowance, the
gauge will display OFSET (blinking) for 1 sec-
ond, then return to the measure mode. To clear
minimum and maximum values, press
ZERO/CLR button (when min/max values are
indicated). Gauge will auto advance once zeroed.
This key allows for customization of the gauge.
Pressing the MENU key allows cycling through
the main MENU items; UNITS, CONFIG, GRAPH,
OFF, UPDAT & DAMP. Any item changed in the
Menu become the new default setting(s).
Revised settings are saved in the event of power
loss.
The (up arrow key) or (down arrow key)
on the keypad allows for scrolling through the
MENU options to increase or decrease numeric
values as required. If in the menu mode, gauge
will automatically advance to measure mode
once selected MENU item has been set.
This key manually turns the backlite on or off.
five options are available. They include NEVER,
10 sec, 30, sec, 1 min, 5 min*. With the NEVER
option, the gauge BACKLITE will remain lit
whenever the gauge is in the ON mode or until
the BACKLITE button is pushed again. Options,
10 sec, 30 sec, 1 min, 5 min*. allow the BACK-
LITE to automatically turn-off after a selected
period of time.
To use the BACKLITE option:
Step 1: Press the MENU key.
Step 2: Press the (up arrow key) or (down
arrow key) until the word LITE appears.
Step 3: Press ENTER.
Step 4: Press the (up arrow key) or (down
arrow key) to select the BACKLITE option.
Step 5: Press the ENTER key to finalize your
choice of LITE options.
KEYPAD FUNCTIONS KEYPAD FUNCTIONS
ON/OFF
ZERO
CLR
MAX/MIN
MENU
The Max/Min key allows review of minimum and
maximum pressure values since unit start-up or
last push of the clear key. Press key to:
1) Indicate maximum pressure.
2) Indicate minimum pressure.
3) Exit MAX/MIN mode and return the unit to
pressure measurement mode. To clear mini-
mum and maximum values press ZERO/CLR
key (must be in MAX/MIN mode).
The (down arrow key) is used in the MENU
mode, see following MENU key section.
Key for gauge
with Backlite
Key for gauge
without Backlite
displayed with
 (up arrow
icon only)
I&M008-10109-DIG New 8-03 6/28/07 3:55 PM Page 6

– 9 –
MENU FUNCTIONS
How to Use Your Menu Functions
To set a user password (SETPW):
Step 1: Press the Menu key on the keypad
Step 2: Press the (up arrow key) or (down arrow
key) until the word CONFIG appears.
Step 3: Press Enter. The word SETPW appears on the
gauge display
Step 4: Press Enter. A five digit numeric password is now
required.
Step 5: Press the (up arrow key) or (down arrow
key) on the keypad to select the first digit of the password.
Step 6: Press ENTER.
Step 7: Repeat until the five-digit password is shown on
the gauge display.
Step 8: Press ENTER.
Note: to erase password at any time while in the SETPW
(set password) mode, press the ZERO/CLEAR key. The
user will be prompted to reprogram the password once the
five-digit password is entered. The gauge will display SAVE.
Step 9: Press Enter to save the password setting.
ENTPW: Once a user password has been established and
entry into the CONFIG mode is required, the user will be
prompted to ENTPW or enter password.
Follow setup steps 4-8 above.
RECAL: or recalibrate allows for zero, mid-scale, full-scale
and factory default calibration of the gauge. The RECAL
feature also allows for recalibration of gauges with
4-20mA output.
*Indicates default.
– 8 –
KEYPAD FUNCTIONS
MENU OPTIONS
UNITS: 12 units of measurement are available: psi, mmHG,
inH2O with three temperature options: 20°C, 60°F, 4°C*,
mBar, inHg, ftH2O, mPa, kPa, kg/cm2and bar.
Step 1: Press the MENU key until the word UNITS appears.
Step 2: Press Enter.
Step 3: Press the (up arrow key) or  (down arrow
key) to select the required unit of measure.
Step 4: Press ENTER to finalize the UNIT selection.
Note: For inH20 range with three temperature options,
press the

(up arrow key) and

(down arrow key) to
select the desired temperature, then press ENTER to final-
ize the UNIT selection.
CONFIG: This option allows access to additional Menu
options. Options include:
• ENTPW or enter password
(this appears as a sub-menu
in the CONFIG mode if a user password has been set).
• RECAL (allows for zero, span and mid-scale calibra-
tion of the gauge).
• 0bUTN or zero key (allows for adjustment of % of
range that can be zeroed),
• dISAb, allows for disabling MENU options.
• SETPW: This feature allows for a user defined numer-
ic password. If a user password is not set, all features
in the CONFIG mode will be accessible without a
password. If a user password is set, all items in the
CONFIG menu options are accessible with or without
a user password. If a user password is programmed,
it will be required to access the CONFIG menu options.
*Indicates default.
ENTER
This key allows for selecting gauge features in the
menu finalizing selection. Use of the enter key is
described throughout operating instructions.
KEYPAD FUNCTIONS
I&M008-10109-DIG New 8-03 6/28/07 3:55 PM Page 8

– 11 –
Note: Calibration of Zero, mid-scale or span can be set inde-
pendently of each other. For instance, if only full-scale cali-
bration is required, press the

(down arrow key) until the
gauge display indicates full-scale pressure. Press Enter and
proceed as indicated above. Calibration of zero, midscale and
full-scale is recommended when recalibrating the gauge.
ZERO KEY (0bUTN): This feature allows the user to select
percent of full-scale at which the gauge can be rezeroed
using the Zero/Clear key on the keypad. Options include 5%
full-scale*, 10% full-scale or DISAB (disable of the zero key).
To use ZERO option:
Step 1: Press the Menu key on the keypad.
Step 2: Press the (up arrow key) or (down arrow
key) until the word CONFIG appears.
Step 3: Press Enter.
Step 4: Enter user password, if it has been programmed.
Step 5: Press the (up arrow key) or (down arrow
key) until the word 0bUTN (zero key) appears.
Step 6: Press Enter.
Step 7: Press the (up arrow key) or (down arrow
key) to select 5PCT (5% full-scale), dISAb (disable zero
key) or 10PCT (10% full-scale).
Step 8: Press Enter to finalize the selection.
DISAB: or disable: This feature allows the user to dISAb
(or disable) or ENAb (enable) items in the MENU. Some
keypad keys can also be enabled or disabled. Any or all
MENU items can be enabled or disabled.
To use DISAB option:
Step 1: Press the Menu key on the keypad.
Step 2: Press the (up arrow key) or (down arrow
key) until the word dISAb appears.
MENU FUNCTIONS
*Indicates default.
– 10 –
To use RECAL option:
Step 1: Press the Menu key on the keypad
Step 2: Press the (up arrow key) or (down arrow
key) on the keypad until the word CONFIG appears.
Step 3: Press Enter.
Step 4: Enter user password if it has been programmed.
Step 5: Press (up arrow key) or (down arrow key)
until the word RECAL appears.
Step 6: Press Enter.
Step 7: The gauge will now flash between INPUT and unit
of measure on the lower line and .00 on the top line. Apply
zero pressure to the gauge.
Step 8: Press Enter. Zero pressure is now set.
Step 9: The gauge will display full-scale pressure. Apply
full-scale pressure to the gauge.
Step 10: Press Enter. Full-scale pressure is now set.
Step 11: The gauge will now display mid-scale pressure.
Apply mid-scale pressure to the gauge.
Step 12: Press Enter. Mid-scale pressure is now set.
(Note: For compound ranges this recalibration is zero,
full-scale, mid-scale and full-vac.)
FOR FACTORY CALIBRATED SETINGS:
Step 13: To reinstate factory calibrated settings for zero,
full-scale and mid-scale press the (down arrow key)
Menu key until the word FACT appears.
Step 14: Press Enter. Factory calibration settings are now
reinstated.
Step 15: After zero, full-scale and/or mid-scale or factory
default calibration have been set, the word SAVE appears
on the gauge display.
Step 16: Press Enter to finalize calibration.
MENU FUNCTIONS
*Indicates default.
I&M008-10109-DIG New 8-03 6/28/07 3:55 PM Page 10

Step 5: Press the ENTER key to finalize your choice. The
gauge display will now display SET. After two seconds the
screen will display the pressure value for 0% on the top
line. The middle line indicates the bar graph at 100% of
fullscale. The bottom line will display SET 0.
Step 6: Press the (up arrow key) or (down arrow
key) on the keypad to increase or decrease gauge value at
0% of range.
Step 7: Press the ENTER key to finalize your choice. The
new values for the bar graph and 4/20mA settings have
now been saved.
OFF: This option sets the amount of time before the gauge will
turn itself off. Offerings are Never*, 30MIN,10MIN, 5MIN, 2
MIN.
To use the OFF option:
Step 1: Press the MENU key.
Step 2: Press the (up arrow key) or (down arrow
key) until the word OFF appears.
Step 3: Press ENTER.
Step 4: Press the (up arrow key) or  (down arrow
key) to select the desired OFF time.
Step 5: Press the Enter key to finalize the OFF setting.
UPDATE: This option allows for changing the rate at which
pressure is updated on the display screen. This feature is
useful with rapid changes in process pressure that may
cause flutter of the display. Options are 100ms*, 1 sec,
500ms and 200ms, updates per second or 100ms*.
Since customer processes vary, update rates should be
selected based on the application.
To use the UPDATE option:
Step 1: Press the MENU key.
– 13 –
– 12 –
MENU FUNCTIONS MENU FUNCTIONS
Step 3: press ENTER. The current setting (ENAB or dISAB)
will be displayed.
Step 4: Press the (up arrow key) or (down arrow
key) on the keypad to select a setting.
Step 5: Press ENTER To finalize the setting.
GRAPH: This option allows the user to change the BAR
graph on the gauge display to correspond to any desired
pressure within the pressure limits of the gauge. This
option is useful when identifying a select portion of the
full-scale range of the gauge. The default setting for the
GRAPH is zero and full-scale pressure. For compound
gauges, the default setting for zero is set at full-scale vacu-
um. Full-scale pressure is set at the positive pressure as
displayed on the gauge keypad.
For gauges supplied with the 4-20mA output option, the
default is 4mA equals 0% of the bar graph and 20 mA
equals 100% of the bar graph.
Changing the bar graph to a pressure other than 0 and
100% of range will also change the 4-20mA output to cor-
respond with the new bar graph pressures for 0 and 100%
.
To use GRAPH option:
Step 1: Press the MENU key.
Step 2: Press the (up arrow key) or (down arrow key)
on the keypad until the word until the word GRAPH appears.
Step 3: Press ENTER . The gauge display will indicate the
set full scale pressure range setting on the top line. The
middle line indicates the bar graph at 100% of full-scale.
The bottom line of the display will indicate SETFS to set
the full-scale range as displayed by the bar graph and 4-
20mA.
Step 4: Press the (up arrow key) or (down arrow key)
on the keypad to increase or decrease gauge value at
100% of range.
*Indicates default. *Indicates default.
I&M008-10109-DIG New 8-03 6/28/07 3:55 PM Page 12

– 15 –– 14 –
Step 2: Press the (up arrow key) or (down arrow
key) until the word UPDATE appears.
Step 3: Press Enter.
Step 4: Press the (up arrow key) or (down arrow
key) to select an update rate.
Step 5: Press ENTER to finalize the selection.
DAMP or dampening: with five different options, this mode
allows for taking process pressure readings and averaging
them. This option is particularly useful to stabilize minor
process fluctuations. The options are NONE*, AVG 8, AVG
6, AVG 4, AVG 2.
Step 1: Press the MENU key until the word dAMP appears.
Step 2: Press Enter
Step 3: Press the (up arrow key) or  (down arrow
key) to select a dampening option.
Step 4: Press the ENTER key to finalize your Damp option.
(This Menu item is only seen on units with the switch option)
SWSET: Allows for setting switch setpoints. The gauge is
offered with one or two SPDT switches. If (one) SPDT
switch is ordered the menu option is SW1. If (two) SPDT
switches are ordered, the MENU options are SW1 and SW2.
Step 1: Press the MENU key.
Step 2: Press the (up arrow key) or (down arrow
key) on the keypad to select the switch to be set. (If two
switches are present.)
Step 3: Press ENTER. The top line of the gauge display will
indicate pressure at 60% of the fullscale gauge range* or
the most recent switch setpoint. The middle line of the dis-
play will indicate a bar graph that displays the pressure
position within the pressure range. The bottom line will
display SETPT (blinking).
*Indicates default.
Note: Setpoints are limited to the full-scale pressure range
of the gauge.
Step 4: Press the (up arrow key) or (down arrow key)
on the keypad to increase or decrease switch set-point
Step 5: Press the ENTER key to finalize switch setpoint. The
gauge will display SET. After two seconds, the top line will
indicate RETRP pressure. The bottom line will read SET.
Step 6: Repeat above to set RETRP (retrip value) If the
gauge is supplied with (one) setpoint, the screen will
advance to the measurement mode. If (two) switches are
supplied the display will advance to SW2.
Repeat the aforementioned if the gauge is supplied with
two switches.
Notes: The bar graph will increase or decrease as any
setpoint pressure is adjusted. The bar graph indicates
switch setpoint position within the full-scale pressure
range of the gauge.
The switch setpoint unit of pressure measurement corre-
sponds with the current set unit of measure of the gauge.
If gauge unit of measurement is changed after switch(es)
is set, switch setpoint(s) will automatically be updated to
correspond with revised unit of measurement. Switch
deadband is the difference between the SETPT (setpoint)
and the RETRP (retrip) pressure.
MENU FUNCTIONS MENU FUNCTIONS
I&M008-10109-DIG New 8-03 6/28/07 3:55 PM Page 14

– 17 –
Comp. mmHg in.Hg In. mm ft. Bar/
psi (psi) (press.) (press.) H2OH
2O mBar H2O mPa kPa ksc
-15/0/15 1500 60 800 60 250 30 6 200 2
-15/0/30 2000 100 1000 100 300 60 10 300 4
-15/0/60 3000 160 160 400 160 50 400 6
30 -15/0/100 200 200 500 200 600 10
60 300 300 600 300 800 16
100 400 400 1000 400 1000 25
160 600 600 1500 600 1600 40
200 800 800 2000 1000 2500 60
300 1000 1000 2500 4000 100
600 1600 4000 6000 160
800 2000 5000 8000 250
1000 3000 400
1500 6000 500
2000 800
3000 1000
5000
8000
10,000
15,000
20,000
DIGITAL INDUSTRIAL GAUGE RANGES:DIGITAL INDUSTRIAL GAUGE SPECIFICATIONS:
DISPLAY MESSAGES:
Display/Problem Description Action
No Battery Icon
Display (applicable to
gauges with batteries
Gauge has <10%
battery life left Replace batteries
OFSET (blinking)
Zero/Clear button
pushed when pressure
displayed is beyond set
rezero pressure limit
Only rezero the gauge within
limits of setting in Menu
Menu button disabled Gauge is in
Max/Min mode
Push Max/Min button until
unit of measure is displayed
on keypad
Unit of measure
selected in Menu
displays N/A
Resolution at full scale
pressure range
exceeds 50,000 counts
Choose another unit of
measure
I can’t access items in
the main Menu
Items that cannot be
accessed have been
disabled
Enable item(s) in the Menu.
See Menu/CONFIG and
diSAb or DISABLE
I can’t set the
password I want
00000 is not a valid
password Select a different password
– 16 –
Type: 2074 (battery), 2174 (loop), 2274 (line)
Accuracy: .25% Full Scale, terminal point
Case Size: 3˝, 41⁄2˝
Case Material: 3˝ SS, 41⁄2˝ fiberglass reinforced thermoplastic or
black epoxy coated aluminum
Case Encl. Rating: Weatherproof, IP65
Wetted Materials: 17-4 SS (sensor), 316SS (socket)
Socket Size: 1⁄4or 1⁄2NPT, JIS, DIN, SAE, (1⁄2NPT only with 41⁄2˝ case,
others on application)
Socket Location: Lower, 3, 9 and 12 o’clock
Ranges: Vac. thru 20,000 psi (see engineering units below for other
units)
Operating Temp.: 14/140°F (10/60°C)
Storage Temp.: –4/158°F (-20/70°C)
DISPLAY
Type: LCD
Display Digits: Five (5)
Character Height: 3˝ .60˝, 41⁄2˝ .88˝
Backlite: Optional
Bar Graph: Yes
Battery Life: 3˝ >1000 hrs., 41⁄2˝ >3600 hrs.
Agency Approvals: CE, FM* (Intrinsically Safe Class1, Div 1), CSA and CENELEC
*FM is not available with the following: 41⁄2˝ polypropylene
case, SPDT switch option(s) (XU1, U2) or Backlite (XBL)
option)
KEYPAD FUNCTIONS
On/Off: Manually turns unit on and off (auto off options in menu)
Zero/Clear: Zeros display or clears min. and max. values when displayed
Min/Max (down) Stores min and max values, arrow key allows for
Arrow Key: scrolling thru menu items
Menu Key: Provides access to menu options
Backlite (up) Manually turns backlite on and off (auto off options in
Arrow Key: menu), arrow key allows for five menu options. (up)
(Backlite optional) arrow key allows for scrolling thru menu options
Enter: Selects items in the menu
MENU MODE
Engineering Units: 10 units of measurement are available; psi, In. H2O (with
three temp. options: 20°C, 60°F, 4°C*), Ft. H2O, mPa, mBar,
kPa, kg/cm2, Bar, inHg and mmHg
Configuration Mode Allows for changes to default settings of gauge
(Config): Including zero disable feaure
Bar Graph (Graph): Allows for adjustment of bargraph and 4-20
(optional feature)
Auto Off (Off): Allows for changes to auto off of gauge, five options:
Never, 2 min., 5 min., 15 min., 30 min.
Update Rate
(Update): Four options: 100 ms, 200 ms, 500 ms, 1 sec
Dampening (Damp): Six options: None, average, 2, 4, 6, 8 times per 100ms
Backlite: Five options: Never, 10 sec., 30 sec., 1 min., 5 min.
Field Recalibration: Allows for recalibration of zero, midscale and span
(password protected)
OPTIONS
4-20mA Display: 12-36 Vdc, mA with unlimited turndown (within gauge range)
Line Powered: 12-36 Vdc, 2VA max.
Switching*: (1) or (2) SPDT switches,(max. contact 30Vdc, 1 amp,
125Vac .5 Amp, Switches adjustable to 100% of range
I&M008-10109-DIG New 8-03 6/28/07 3:55 PM Page 16

– 19 –
L
OO
P+
L
OOP
–
T
7
D
9
D7
Y1
D1
0
C14 T
9
V1
F1D1
C3
C7
R2
J
1
1
1
C
2
C17
D11
U
7
4
C
1
5
R1
8
D5
3
D
3
D12
T1
0
T1
2
T11
+
24
V
G
N
D
E
GN
D
F
ID
3
D
RE
SS
E
R
3
21
CO
21–
D
8
Q2
J5
J3
C4
R
9
R1
0
R1
1
R1
2
R1
3
Q
1
C
1
0
C9
R6
C5
L
1
U4
F
O7
R
8
FID4
V2
R1
R5
C
1
T
B 2003
Y2
J2
FID2
V6
R21
T8
E
C
N
D
F
ID
6
FID5
R
1
9
R
ed
Bl
a
c
k
227X
-
XA
O
A
A
Wieco
9
2
09
S
hiel
d
G
reen
W
h
i
t
e
Batter
y
Input
Ke
ypad Input
e
e
S
ensor Inpu
t
WIRING DIAGRAM
Line Powered/Loop Powered 4-20mA (Type 2274 XAO)
4 conductor, 20 AWG shielded
Line Powered with (1) SPDT switch (Type 2274 XU1)
5 conductor, 22 AWG shielded
L
OO
P+
L
OOP
–
T
7
D
9
D7
Y1
D1
0
C14 T
9
C3
C7
R2
J
1
1
C
2
C17
D11
U
7
4
C
1
5
R18
D6
D1
5
D
3
D
1
2
T1
0
T1
2
T11
+
24
V
G
N
D
E
GN
D
F
ID
3
D
RE
SS
E
R
3
21
CO
21–
Q2
J5
J
3
C4
0
R1
1
R1
2
R1
3
Q
1
C
1
0
C9
R6
C5
L
1
U4
F
O7
R
8
FID4
V2
R1
R5
C
1
R4
C6
DQ/TB 2003
Y2
J2
FID2
V6
R21
T8
E
C
N
D
F
ID
6
FID5
R
1
9
R
ed
Bl
a
c
k
227X
-
XA
O
AA
Wieco
9
2
09
Batter
y
Input
yp p
S
ensor Inpu
t
Shield
Y1
V1
F1D
1
C
3
C7
R7
R2
J1
1
1
J6
C2
R22
R2
0
C
1
7
D11
7
C
1
5
R1
8
5
1
D6
D
3
T1
0
T12
T1
1
+24V
GND
EGN
D
FID
3
321
CO
2
1
–
D
8
Q2
J5
J
3
C
4
R9
R1
0
R1
1
R1
2
R1
3
Q1
C
1
0
C
9
R
6
C5
L1
U4
FO
7
R8
FID4
V2
R1
R
5
C1
R4
C6
C8
DQ
/
TB 2003
Y
2
J2
FID2
FID
6
FID
5
227X
Wieco
9
2
06
S
hie
l
d
Bl
ac
k
R
ed
Batter
y
Inpu
t
Ke
ypad Input
ee
Sensor In
p
u
t
– 18 –
WIRING DIAGRAM
Line Powered (Type 2274)
2 conductor, 20 AWG shielded
Loop Powered 4-20mA (Type 2174)
2 conductor, 20 AWG shielded
(– exc.)
(+ exc.)
(– exc.)
(+ exc.)
(– exc.)
(+ exc.)
(– exc.)
(+ exc.)
(+ exc.)
(– exc.)
I&M008-10109-DIG New 8-03 6/28/07 3:55 PM Page 18

– 21 –
LOOP+ LOOP–
T7
D9
D7
Y1
D10 C14 T9
U5
V1
F1D1
C3
C7
R7
R2
J1
1
1
J6
C2
R22R20 C17
D11
U7
D14
D1
C15
R18
D5
R23
R24
D13
R14 R16
J3
J7
1
Q4
D16
D6
D15
D3
D12
T10 T12 T11
+24V GND EGND
FID3
DRESSER
321CO21–
D8
Q2
J5 J3
C4
R9 R10 R11 R12 R13
Q1C10
C9
R6
C5
L1 U4
FO7 R8
FID4
V2
R1
R5
C12
C13
C1
R4 C6
C8
DQ/TB 2003
Y2
J2
T4 T6 T5
FID2
C11
K1
K2
K2
D2
T3 T2 T1
V6
R21
ISO1
R15
ISO2
Q3
T8
ECND
FID6
FID5
R17
R19
Red
Black
(N.O.) Blue
(N.C.) Orange
(COM) Brown
(N.C.) Violet
(N.O.) Ye llow
(COM) Grey
227X-XAO-XU2
Belden 9946
Shield
Green
White
Battery Input
Keypad Input
Sensor Input
Switch 1
Switch 2
WIRING DIAGRAM
Line Powered/Loop Powered 4-20mA with (2) SPDT switches
(Type 2274 XAOU2) 10 conductor, 22 AWG shielded
– 20 –
L
OO
P+
LOOP
–
T
7
D
9
D7
Y1
U
5
V1
F1D1
C3
J1
C2
C17
D11
U7
4
C
1
5
D16
D6
D1
5
D3
D
1
2
T1
0
T1
2
T11
+
24
V
GND
EGN
D
F
ID
3
D
RE
SS
E
R
3
21
CO
21–
J5
J
3
C4
C10
C9
R6
C5
L
1
U4
F
O7
R
8
FID4
V2
R1
R5
C
1
R4
C6
DQ/TB 2003
Y2
J2
F
ID
2
C1
1
K1
K
2
T3
T2
T1
R1
5
I
SO
2
Q3
ECND
F
ID
6
FID5
R17
R
1
9
R
ed
Bl
a
c
k
(N.O
.)
O
O
B
l
ue
(
N
.
C
.)
O
ran
g
e
(
COM
)
Br
o
w
n
227X
-
XA
O-XU1
A
A
Belden
99
4
3
S
hiel
d
G
reen
W
h
i
t
e
Batter
y
Input
Ke
ypad Input
e
S
ensor Inpu
t
Y1 V1
F1D1
C3
C7
R7
R2
J1
1
1
J6
C2
R22R20 C17
D11
U7
D14
D1
C15
R18
D5
R23
R24
D13
R14 R16
J3
J7
1
Q4
D16
D6
D15
D3
D12
T10 T12 T11
+24V GND EGND
FID3
DRESSER
321CO21–
D8
Q2
J5 J3
C4
R9 R10 R11 R12 R13
Q1 C10
C9
R6
C5
L1 U4
FO7 R8
FID4
V2
R1
R5
C12
C13
C1
R4 C6
C8
DQ/TB 2003
Y2
J2
T4 T6 T5
FID2
C11
K1
K2
K2
D2
T3 T2 T1
ISO1
R15
ISO2
FID6
FID5
R17
(N.O.) White
(COM) Brown
(N.C.) Green
(N.O.)
(N.C.) Blue
(COM) Orange
227X-XU2
Belden 9944
Shield
Black
Red
Battery Input
Keypad Input
Sensor Input
Switch 1
Switch 2
WIRING DIAGRAM
Line Powered/Loop Powered 4-20mA with (1) SPDT switch
(Type 2274 XAOU1) 7 conductor, 22 AWG shielded
Line Powered with (2) SPDT switches (Type 2274 XU2)
8 conductor, 22 AWG shielded
(– exc.)
(+ exc.)
(– exc.)
(+ exc.)
(– exc.)
(+ exc.)
I&M008-10109-DIG New 8-03 6/28/07 3:55 PM Page 20

– 23 –
WIRING DIAGRAM
1000
750
500
250
0
0362010 30
Load Limitations 4-20mA Output Only
RL-Loop Resistance in Ohms
Loop Supply Voltage (Vdc)
OPERATING
REGION
Vdc MIN = 12V + [0.022A* X (RL) ]
RL= RS+ RW
RL= Loop Resistance (ohms)
RS= Sense Resistance (ohms)
Rw= Wiring Resistance (ohms)
*Includes a 10% safety factor.
+
+
–
POWER
SUPPLY
(+)
(–)
METER
GAUGE
–
V+
V–
PIN A
PIN B
4-20mA
– 22 –
(seperate power supply required when switch(s) is/are ordered)
I&M008-10109-DIG New 8-03 6/28/07 3:55 PM Page 22

– 24 –
Ashcroft Inc.
250 East Main Street
Stratford, CT 06614-5145
Tel: [phone]
Fax: [phone]
e-mail: [email protected]
www.ashcroft.com
© Ashcroft Inc. 3/06 I&M008-10109-GBE dwg. 83B234-01 Rev. B 12/04
GGAAUUGGEEIINNSSTTAALLLLAATTIIOONN::
The Ashcroft digital industrial gauge comes standard with either
1
⁄ 4 or
1
⁄ 2 NPT connection.
Good piping practices recommend using teflon tape or a pipe sealant on the gauge
threads. Utilize a
9
⁄ 16 ˝ (3˝ case),
5
⁄ 8 ˝ (4
1
⁄ 2 ˝ case) wrench on the wrench flat of the gauge to
tighten the gauge to the process.
NEVER TIGHTEN GAUGE THREADS BY HOLDING THE BODY OF THE GAUGE. DOING SO
MAY DAMAGE THE GAUGE AND MAKE THE GAUGE INOPERABLE.
!
Pipe to which gauge is attached
must be properly grounded.
4.00
1.860
.17
CLAMPING RING (1278G ONLY)
WASHER
SPACERPOST
(3 REQ’D)
“B” (3 REQ’D)
PANEL
MOUNTING
RING
6˝ RING
DIA.
5.65˝
PANEL
OPENING
5/16˝ MAX PANEL
THICKNESS
Battery Installation and Replacement:
The Type 2074 comes standard with batteries installed. The 3˝ case uses qty (2) AA alka-
line batteries, the 4
1
⁄ 2 ˝ case uses qty (2) C alkaline batteries. Use either Duracell MN2400,
MX2400 or Energizer E92BP, X92RP AAA alkaline, non-rechargeable batteries.
Batteries have a life of approximately 1500 hours (3˝ case). 3600 hours (4
1
⁄ 2 ˝ case).
Battery life is dependent on gauge usage, backlite settings and power off settings. When
the lower bar of the battery icon of the gauge display flashes, the gauge has approxi-
mately 7 hours of life remaining.
HOLE
CUTOUT
DIAMETER
3.406
(3
13
⁄ 32 ±
1
⁄ 32 )
To replace the batteries (3˝ case):
1) Remove the single screw on the back of
the gauge case.
2) Hold the keypad in the palm of hand.
3) Carefully remove the two batteries from
the holder and replace batteries. Use only
AA alkaline non-rechargeable batteries.
To provide maximum battery life, replace
both batteries.
To replace the batteries (4
1
⁄ 2 ˝ case):
1) Remove the ring on the front of the
gauge case.
2) Looking at the gauge case, carefully
pull the front face out of the case.
3) Lay the gauge, face down on a flat sur-
face.
4) Carefully remove the two batteries from
the holder and replace the batteries.
Use only C alkaline non-rechargeable
batteries.
To provide maximum battery
life, replace both batteries.
Notes:
1) Do not mix ages or brands of batteries.
2) Do not replace batteries in hazardous
areas.
3˝ CASE 41⁄2˝ CASE
PPAANNEELLMMOOUUNNTTIINNGGDDIIMMEENNSSIIOONNSS
I&M008-10109-DIG New 8-03 6/28/07 3:55 PM Page 24