Digital Industrial Gauge
Operating Instructions
I&M008-10109 Rev. F 10/13
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.
Ashcroft Inc.
250 East Main Street | Stratford, CT 06614-5145
Tel: 203-378-8281 | Fax: 203-385-0602
e-mail: info@ashcroft.com | www.ashcroft.com
– 2–
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 ........................................................17
Display Messages ..........................................17
Wiring Diagrams ........................................18-29
Gauge Installation & Maintenance ....................30-32
• Mounting
• Battery Replacement & Installation
– 3–
.88˝ high digital display (41⁄2˝ case)
.60 high digital display(3˝ case)
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
UNITS (Pressure)
ENGLISH
INHG
PSI*
INH2O
@ 4°C, 20°C, 60°F
FTW
FTSW
METRIC
BAR
MBAR
KPA
CMH2O
KG/CM2
QUICK REFE
Press to read menu
UPDATE RATE
(Pressure measurement
per second)
10x (100 MS)*
5x (200 MS)
2x (500 MS)
1x (1 Sec)
BACKLITE
(Off options)
Never
2 SEC
5 SEC*
15 MIN
30 MIN
– 4–
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
pressurized beyond full-scale
This bar graph indicates battery level;
the more segments, the closer the
battery is to full charge (only dis-
played on units with battery
Press to turn backlite on or off
Range on keypad;
complies with ASME B40.7
AUTO OFF
(Turns unit off after
option selected)
Never*
2 minutes
5 minutes
15 minutes
30 minutes
DAMPENING
(Takes pressure reading
and averages
process pressure
None*
Avg 2
Avg 4
Avg 6
Avg 8
Press to turn unit on or off
Flashing display when unit
(backlite optional)
CALIBRATE
Zero and span
adjustments,
password
protected
DISABLE
Allows for
“lockout” of
MENU
options
*Indicates Default
– 5–
KEYPAD FUNCTIONS
Turns the gauge on and off. When pressing the
ON/OFF
ON/OFF key while in the off position, gauge startup display first indicates the software version
followed by the model number and gauge pressure range. The gauge will then display indicated
pressure and be ready for use.
Press this key for one second prior to gauge
ZERO
usage to rezero any initial zero shift. If zero shift
CLR
is greater than programmed zero allowance, the
gauge will display OFSET (blinking) for 1 second, 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.
MAX/MIN
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 minimum and maximum values press ZERO/CLR
key (must be in MAX/MIN mode).
(down arrow key) is used in the MENU
The
mode, see following MENU key section.
– 6–
MENU
Key for gauge
with Backlite
Key for gauge
without Backlite
displayed with
(up arrow
icon only)
KEYPAD FUNCTIONS
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 BACKLITE 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.
– 7–
KEYPAD FUNCTIONS
This key allows for selecting gauge features in the
ENTER
menu finalizing selection. Use of the enter key is
described throughout operating instructions.
MENU OPTIONS
UNITS: 12 units of measurement are available: psi, mmHG,
inH
O with three temperature options: 20°C, 60°F, 4°C*,
2
mBar, inHg, ftH
O, mPa, kPa, kg/cm2and bar.
2
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 inH
press the
0 range with three temperature options,
2
(up arrow key) and (down arrow key) to
select the desired temperature, then press ENTER to finalize 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.
Default user password is 12045 or 12*45.
– 8–
*Indicates default.
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.
– 9–
*Indicates default.
MENU FUNCTIONS
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.
Step 13: After zero, full-scale and/or mid-scale or factory
default calibration have been set, the word SAVE appears
on the gauge display.
Step 14: Press ENTER to finalize calibration.
(Note: For compound ranges this recalibration is zero,
full-scale, mid-scale and full-vac.)
FOR FACTORY CALIBRATED SETTINGS:
To reinstate factory settings for zero, full-scale and midscale follow RECAL steps 1-6
Step 7: When the word INPUT appears press
(up arrow
key) until the word FACT appears.
Step 8: Press ENTER to finalize calibration.
– 10 –
*Indicates default.
MENU FUNCTIONS
Note: Calibration of Zero, mid-scale or span can be set independently of each other. For instance, if only full-scale calibration 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.
– 11 –
*Indicates default.
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 vacuum. 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 correspond 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 420mA.
Step 4: Press the
(up arrow key) or (down arrow key)
on the keypad to increase or decrease gauge value at
100% of range.
– 12 –
*Indicates default.
MENU FUNCTIONS
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 –
*Indicates default.
MENU FUNCTIONS
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 (1) or (2) SPDT switches. If (1) SPDT switch
is ordered the menu option is SW1. If (2) 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 full-scale gauge range* or
the most recent switch setpoint. The middle line of the display will indicate a bar graph that displays the pressure
– 14 –
*Indicates default.
MENU FUNCTIONS
position within the pressure range. The bottom line will
display SETPT (blinking). SETPT is switch setpoint on
rising pressure.
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.
RETRP is switch setpoint on falling pressure.
Step 6: Repeat above to set RETRP (retrip value) If the
gauge is supplied with (1) setpoint, the screen will advance
to the measurement mode. If (2) switches are supplied the
display will advance to SW2.
Repeat the aforementioned if the gauge is supplied with
(2) 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 corresponds 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.
– 15 –
DIGITAL INDUSTRIAL GAUGE SPECIFICATIONS
Type: 2074 (battery), 2174 (loop), 2274 (line)
Accuracy: .25% Full Scale, terminal point
Case Size: 3˝, 41⁄2˝
Case Material: 3˝ SS, 4
Case Encl. Rating: Weatherproof, IP65
Wetted Materials: 17-4 SS (sensor), 316SS (socket)
Socket Size:
Socket Location: Lower, 3, 9 and 12 o’clock
Ranges: Vac. thru 20,000 psi (see engineering units below for other
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 *FM is not
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
(down) Stores min and max values, arrow key allows for
Min/Max
Arrow Key: scrolling thru menu items
Menu Key: Provides access to menu options
(up) Manually turns backlite on and off (auto off options in
Backlite
Arrow Key: menu), arrow key allows for five menu options.
(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. H
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
Auto Off (Off): Allows for changes to auto off of gauge, five options:
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
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,
1
⁄2˝ fiberglass reinforced thermoplastic or
black epoxy coated aluminum
1
⁄4 or 1⁄2 NPT, JIS, DIN, SAE, (1⁄2 NPT only with 41⁄2˝ case,
others on application)
units)
1
available with the following: 4
switch option(s) (XU1, U2) or Backlite (XBL) option)
three temp. options: 20°C, 60°F, 4°C*), Ft. H
kPa, kg/cm2, Bar, inHg and mmHg
⁄2˝ polypropylene case, SPDT
O (with
2
O, mPa, mBar,
2
(optional feature)
Never, 2 min., 5 min., 15 min., 30 min.
(password protected)
125Vac .5 Amp, Switches adjustable to 100% of range
(up)
– 16 –
DIGITAL INDUSTRIAL GAUGE RANGES
Note: Rows listed are not the equivalent of each other.
in.Hg Comp. mmHg in.Hg in. ft. Bar/
psi
(vacuum) (psi) (pressure)(pressure) H
15 30
–15/0/15
30
60
100
160 5000 200 4000 400 6 600 6
200 10,000 300 5000 600 10 1000 10
300 400 6000 1000 16 1600 16
600 600 10,000 25 2500 25
800 800 15,000 40 4000 40
1000 20,000 60 6000 60
1500 100 10,000 100
2000 140 16,000 160
3000 25,000 250
5000 40,000 400
8000 60,000 600
10,000 100,000 1000
15,000 140,000 1400
20,000
800 30 400 1000 60 1 100 1
–15/0/30
1000 60 800 1500 160 1.6 160 1.6
–15/0/60
2000 100 1000 2000 200 2.5 250 2.5
–15/0/100
3000 160 2500 300 4 400 4
mBar
O
2
mPa kPa
H2O
DISPLAY MESSAGES:
Display/Problem Description Action
No Battery Icon
Display (applicable to
gauges with batteries
OFSET (blinking)
Menu button disabled
Unit of measure
selected in Menu
displays N/A
I can’t set the
password I want
I can’t access items in
the main Menu
Gauge has <10%
battery life left
Zero/Clear button
pushed when pressure
displayed is beyond set
rezero pressure limit
Gauge is in
Max/Min mode
Resolution at full scale
pressure range
exceeds 50,000 counts
00000 is not a valid
password
Items that cannot be
accessed have been
disabled
Replace batteries
Only rezero the gauge within
limits of setting in Menu
Push Max/Min button until
unit of measure is displayed
on keypad
Choose another unit of
measure
Select a different password
Enable item(s) in the Menu.
See Menu/CONFIG and
diSAb or DISABLE
KSC
– 17 –
WIRING DIAGRAM
Loop Powered 4-20mA (Type 2174)
2 conductor, 20 AWG shielded
Red (+ exec.) A
Black (– exec.) B
R19
LOOP–
ECND
R21
V6
T9
D10
C14
T8
Q3
U5
V1
C2
FID5
FID4
D11
V2
U7
C15
R18
D5
R9
R10
R11
R12
R13
D8
Red
J5
FID3
T11
321CO21–
EGND
(+)
(A)
D6
D15
D3
T12
GND
Battery Input
J1
1
1
J6
J3
1
J7
POWER
SUPPL Y
–
T7
D9
R2
R22
R20 C17
R14R16
Q4
D16
D12
LOOP+
D7
Y1
F1D1
C3
C7
R7
D14
D1
R24
R23
D13
T10
+24V
+
(–)
(B) (–)
Black
METER
PLC
SCADA
+
–
Installation Procedure for 2174:
Shield
FID2
FID6
C1
R8
R5
FO7
R1
C10
Q1
Q2
J3
C4
J2
U4
L1
C9
R6
C5
C8
DQ/TB 2003
C6
R4
Sensor Input
Y2
Keypad Input
V+
GAUGE
V–
ESD precautions should be taken. See page 31 for details.
1. Ensure all power is off/disconnected from the circuit.
2. Connect the red wire (A) to the positive power terminal.
3. Connect the black wire (B) to the positive terminal on the
meter.
4. Connect the negative side of the meter to the negative
power terminal.
Note: Meter should be installed on the black wire only.
– 18 –
1000
Load Limitations 4-20mA Output Only
RL-Loop Resistance in Ohms
750
500
OPERATING
250
REGION
0
Loop Supply Voltage (Vdc)
Vdc MIN = 12V + [0.022A X (RL) ]
= RS+ R
R
L
W
RL= Loop Resistance (ohms)
= Sense Resistance (ohms)
R
S
= Wiring Resistance (ohms)
R
w
30
620100
– 19 –
WIRING DIAGRAM
POWER
Line Powered (Type 2274)
2 conductor, 20 AWG shielded
Y1
F1D1
V1
C3
J1
Battery Input
SUPPL Y
–
1
R2
1
J6
R22
R14R16
J3
1
J7
Q4
D16
R20 C17
D12
C2
D15
D3
D11
U7
R18
D5
D6
T12
GND
Red (C)
FID5
FID4
V2
C15
R9
R10
R11
D8
FID3
T11
321CO21–
EGND
(+)
C7
R7
D14
D1
R24
R23
D13
T10
+24V
+
Black (D)
R12
( – )
Q1
R13
J5
FID6
C1
R8
FO7
R1
C10
C9
R6
Q2
J3
C4
V+
V–
R5
L1
C5
C8
DQ/TB 2003
C6
R4
Keypad Input
Shield
Black (–exec.) D
Red (+exec.) C
FID2
J2
U4
Y2
GAUGE
Sensor Input
Installation Procedure for 2274:
ESD precautions should be taken. See page 31 for details.
1. Ensure all power is off/disconnected from the circuit.
2. Connect the red wire (C) to the positive power terminal.
3. Connect the black wire (D) to the negative power terminal.
– 20 –
WIRING DIAGRAM
Line Powered with (1) SPDT switch (Type 2274 XU1)
5 conductor, 22 AWG shielded
(–exec.) F
(+exec.) E
POWER
SUPPL Y
+
–
Red (E)
Black (F)
White (NO)
Brown (Common)
Green (NC)
(+)
V+
(–)
GAUGE
V–
•
Installation Procedure for 2274 XU1:
ESD precautions should be taken. See page 31 for details.
1. Ensure all power is off/disconnected from the circuit.
2. Connect the red wire (E) to the positive power terminal.
3. Connect the black wire (F) to the negative power terminal.
Wiring the Switch:
Normally Open: Use the white and brown wires.
Normally Closed: Use the green and brown wires.
– 21 –
SWITCH 1
WIRING DIAGRAM
Line Powered with (2) SPDT switches (Type 2274 XU2)
8 conductor, 22 AWG shielded
(N.O .) W hi t e
(N. C. ) Green
(COM) Brown
FID2
SWITCH 2
T5
(N.C.) Yell ow
T6
(N.O.)
Blue
(COM) Orang e
T4
J2
Sensor Input
Y2
Battery Input
Y1
C3
J1
1
R2
C7
1
R7
J6
R22
R20 C17
D14
D1
R14 R16
R24
J3
R23
1
D13
J7
Q4
D16
D12
T10
+24V
T2
T3
FID6
C1
R8
FO7
Q1
Q2
J3
C4
D2
C11
C13
C12
R5
R1
C10
C9
R6
C6
R4
T1
K1
K2
K2
U4
L1
C5
C8
DQ/TB 2003
Ke ypad Input
Shiel d
Blac k (–exec.) G
Red (+exec.) H
F1D1
V1
U7
D5
D6
D15
D3
T12
GND
ISO 1
R15
ISO 2
R17
C2
FID5
FID4
D11
V2
C15
R1 8
R9
R10
R11
R12
R13
D8
J5
FID3
T11
321CO21–
EGND
POWER
SUPPLY
–
Switch 1
Switch 2
Red (G)
+
Black (H)
White (NO)
Brown (Common)
Green (NC)
Blue (NO)
Orange (Common)
Yellow (NC)
(+)
(–)
– 22 –
V+
V–
GAUGE
•
•
Installation Procedure for 2274 XU2:
ESD precautions should be taken. See page 31 for details.
1. Ensure all power is off/disconnected from the circuit.
2. Connect the red wire (G) to the positive power terminal.
3. Connect the black wire (H) to the positive meter terminal.
Wiring Switch 1:
Normally Open: Use the white and brown wires.
Normally Closed: Use the green and brown wires.
Wiring Switch 2:
Normally Open: Use the blue and orange wires.
Normally Closed: Use the yellow and orange wires.
– 23 –
WIRING DIAGRAM
Line Powered/Loop Powered 4-20mA (Type 2274 XAO)
4 conductor, 20 AWG shielded
Red (I)
Black (J)
LOOP–
D10
C14
V1
U7
D5
D6
D15
D3
T12
GND
Black (J)
+
ECND
T9
U5
C2
D11
C15
R18
T11
EGND
Red (I)
White (K)
Green (L)
R19
R21
V6
T8
Q3
FID5
FID6
C1
FID4
R8
V2
FO7
R1
C10
Q1
R9
R10
R11
R12
R13
D8
Q2
J5
J3
FID3
C4
321CO21–
FID2
R5
J2
U4
L1
C9
R6
C5
C8
DQ/TB 2003
C6
R4
Sensor Input
Y2
Keypad Input
Shield
Green (L)
White (K)
(+)
V+
(+)
(–)
(–)
GAUGE
V–
Battery Input
–
–
METER
PLC
SCADA
LOOP+
T7
D9
Y1
J1
1
R2
1
J6
R22
R20 C17
R14R16
J3
1
J7
Q4
D16
D12
POWER
SUPPLY
D7
F1D1
C3
C7
R7
D14
D1
R24
R23
D13
T10
+24V
+
– 24 –
Installation Procedure for 2274 XAO:
ESD precautions should be taken. See page 31 for details.
1. Ensure all power is off/disconnected from the circuit.
2. Connect the white wire (K) to the positive power terminal.
3. Connect the green wire (L) to the negative power terminal.
4. Connect the red wire (I) to the positive power terminal.
5. Connect the black wire (J) to the positive meter terminal.
6. Connect the negative power terminal with the negative
meter terminal.
Note: Meter should be installed on the black wire only.
If red/black wires are connected prior to the green/white
and power is connected, output may be damaged due to
overloading.
Warning: Using multiple power sources for line and loop
power is not recommended as it may cause damage to
the unit.
– 25 –
WIRING DIAGRAM
Line Powered/Loop Powered 4-20mA with (1) SPDT switch
(Type 2274 XAOU1) 7 conductor, 22 AWG shielded
Red M
Blac k N
(N.O.) Bl ue
(N.C.) Or ang e
(COM) Brown
FID2
J2
Sensor Input
Y2
Battery Input
–
–
LOOP+
T7
D9
D7
Y1
J1
1
R2
1
J6
R22
R20 C17
R14R16
J3
1
J7
Q4
D16
D12
+24V
POWER
SUPPLY
METER
PLC
SCADA
Switch
LOOP–
T9
D10
C14
F1D1
V1
C3
C7
R7
D11
D14
D1
U7
C15
R24
R18
D5
R23
D13
D6
D15
D3
T12
T10
GND
Red (M)
+
White (P)
Green (O)
Black (N)
+
Blue (NO)
Brown (Common)
Orange (NC)
R19
ECND
T8
Q3
U5
C2
FID5
R9
D8
T11
321CO21–
EGND
T2
T3
FID6
C1
R8
FO7
Q1
Q2
J5
C11
R5
R1
C10
C9
R6
J3
C4
R4
V+
V–
T1
D2
K1
K2
U4
L1
C5
C8
DQ/TB 2003
C6
Keypad Input
Shield
Green (–ex ec.) O
White (+e xec.) P
GAUGE
R21
V6
ISO1
R15
ISO2
R17
FID4
V2
R10
R11
R12
R13
FID3
(+)
(+)
(–)
(–)
•
– 26 –
Installation Procedure for 2274 XAOU1:
ESD precautions should be taken. See page 31 for details.
1. Ensure all power is off/disconnected from the circuit.
2. Connect the white wire (P) to the positive power terminal.
3. Connect the green wire (O) to the negative power terminal.
4. Connect the red wire (M) to the positive power terminal.
5. Connect the black wire (N) to the positive meter terminal.
6. Connect the negative power terminal with the negative
meter terminal.
Note: Meter should be installed on the black wire only.
If red/black wires are connected prior to the green/white
and power is connected, output may be damaged due to
overloading.
Wiring the Switch:
Normally Open: Use the blue and brown wires.
Normally Closed: Use the orange and brown wires.
– 27 –
Whit e
WIRING DIAGRAM
Line Powered/Loop Powered 4-20mA with (2) SPDT switches
(Type 2274 XAOU2) 10 conductor, 22 AWG shielded
Red Q
Black R
SWITCH 1
(N.O .) Bl ue
(N.C .) O ra ng e
FID2
T5
T6
T4
J2
Y2
(-exec.) S
(+exec.) T
V+
V–
(COM) Br ow n
SWITCH 2
(N.C.) V i o le t
(N.O .) Ye ll o w
(COM) G re y
Sensor Input
GAUGE
•
•
Battery Input
LOOP+
T7
D9
D7
Y1
C3
J1
1
R2
C7
1
R7
J6
R22
R20 C17
D14
D1
R14 R16
R24
J3
R23
1
D13
J7
Q4
D16
D12
T10
+24V
–
METER
PLC SCADA
LOOP–
D10
C14
F1D1
V1
U7
D5
D6
D15
D3
T12
GND
POWER
SUPPLY
–
Switch 1
Switch 2
ECND
T9
T8
U5
C2
D11
C15
R18
D8
T11
EGN D
+
+
R19
T2
T3
R21
V6
D2
ISO1
Q3
R15
C11
ISO2
R17
FID5
FID6
C13
C1
C12
FID4
R8
V2
R5
FO7
R1
C10
Q1
R9
R1 0
R1 1
R1 2
R1 3
C9
R6
Q2
J5
J3
FID3
C4
321CO21–
C6
R4
Red (Q)
White (T)
Green (S)
Black (R)
Blue (NO)
Brown (Common)
Orange (NC)
Yellow (NO)
Grey (Common)
Violet (NC)
T1
K1
K2
K2
U4
L1
C5
C8
DQ/TB 2003
Ke ypad Input
Shiel d
Green
(+)
(+)
(–)
(–)
– 28 –
Installation Procedure for 2274 XAOU2:
ESD precautions should be taken. See page 31 for details.
1. Ensure all power is off/disconnected from the circuit.
2. Connect the white wire (T) to the positive power terminal.
3. Connect the green wire (S) to the negative power terminal.
4. Connect the red wire (Q) to the positive power terminal.
5. Connect the black wire (R) to the positive meter terminal.
6. Connect the negative power terminal with the negative
meter terminal.
Note: Meter should be installed on the black wire only.
Wiring Switch 1:
Normally Open: Use the blue and brown wires.
Normally Closed: Use the orange and brown wires.
Wiring Switch 2:
Normally Open: Use the yellow and grey wires.
Normally Closed: Use the violet and grey wires.
If red/black wired are connected prior to green/white wires
and power is connected, output may be damaged due to
overloading.
– 29 –
GAUGE INSTALLATION:
The Ashcroft digital industrial gauge comes standard with
1
⁄4 or 1⁄2 NPT connection. Good piping practices rec-
either
ommend using teflon tape or a pipe sealant on the gauge
threads. Utilize a
9
⁄16˝ (3˝ case), 5⁄8˝ (41⁄2˝ 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.
Battery Installation and Replacement:
The 3˝ Type 2074 comes with two AA alkaline batteries
installed. For battery replacement use;
• Duracell AA alkaline, MN1500 LR06 1.5V
1
The 4
⁄2˝ Type 2074 comes with two C alkaline batteries
installed. For battery replacement use one or the other;
• Energizer C alkaline, E93 or EN93 alkaline LR14 AM2 1.5V
• Duracell C alkaline, MN1400 LR14 1.5V
Do not mix ages or brands of batteries. Do not replace
batteries in hazardous areas.
Batteries have a life of approximately 450 hours (3˝ case).
2500 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 approximately 7 hours of life remaining.
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.
1
To replace the batteries (4
⁄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 surface.
4) Carefully remove the two batteries from the holder and
replace the batteries.
– 30 –
ESD PRECAUTIONS
Care should be taken to minimize exposure to ESD.
Proper proto-call should be followed as outlined in:
ANSI/ESD S20.20-2007
ESD ADV1.0-2009
ANSI/ESD S541-2008
Additional ESD Precautions on Proper Handling:
Avoid carpets in cool, dry areas as well as other static
generating materials such as plastic, cellophane, paper, or
cardboard.
Leave digital gauges in their anti-static packaging until
ready to be installed.
Dissipate static electricity before handling the digital
gauge or using keypad by touching a well-grounded metal
object, such as the system unit unpainted metal chassis.
If possible, use antistatic devices, such as wrist straps and
floor mats.
When installing batteries, avoid touching (including clothing) the contacts and components.
When making wiring connection to digital gauge terminals, place digital gauge on grounded mat prior to making
connection, and take care to avoid touching (including
clothing) any components.
Take care when connecting or disconnecting cables. A
damaged cable can cause a short in the electrical circuit.
When disconnecting a cable, always pull on the cable connector, case, or strain-relief loop, not on the cable itself.
– 31 –
Notes:
1) Do not mix ages or brands of batteries.
2) Do not replace batteries in hazardous areas.
3) To provide maximum battery life, replace both batteries
4) To provide maximum battery life, replace both batteries.
Pipe to which gauge is attached must be properly
grounded.
PANEL MOUNTING DIMENSIONS:
.17
4.00
MOUNTING
RING
HOLE
CUTOUT
DIAMETER
3.406
13
⁄32±1⁄32)
(3
CLAMPING RING (1278G ONLY)
WASHER
SPACER POST
(3 REQ’D)
1.860
3˝ CASE
6˝ RING
DIA.
5.65˝
PANEL
OPENING
“B” (3 REQ’D)
5/16˝ MAX PANEL
THICKNESS
PANEL
41⁄2˝ CASE
Ashcroft Inc.
250 East Main Street | Stratford, CT 06614-5145
Tel: 203-378-8281 | Fax: 203-385-0602
e-mail: info@ashcroft.com | www.ashcroft.com
I&M008-10109 Rev. F 10/13
– 32 –
– 32 –
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