Ashcroft 2074, 2174, 2274 Specifications

Types 2074, 2174 & 2274
Digital Industrial Gauge

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FEATURES

• A Multi-Functional Digital Gauge with
Optional:

- 4-20mA Output

- (1) or (2) SPDT Switches

• 1⁄4% Full Scale Terminal Point Accuracy (.13%
BFSL)

• IP 65 Weatherproof Case

• Three Case Options:
Stainless Steel, Fiberglass Reinforced
Thermoplastic or Aluminum

• Extra Large Display

• Intrinsically Safe, Class I, Div. 1

• Easy-to-Use Menu Options:
(all password protected)

- Five Backlite Display Options

- Twelve Engineering Units

- Menu Configure Feature

- Update Rate

- Dampen Rate

- Auto-Off

At last, a multi-functional gauge from
the experts in pressure measurement.

When any combination of local indication,
a 4-20mA signal and switching are required
to meet your needs, the Ashcroft® digital
industrial gauge provides the solution.

PRODUCT SPECIFICATIONS

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
Electrical Connection for Loop or Line Power:

41⁄2˝ case screw down terminals
3˝ case jacketed cable extended 3 feet
For different cable length use variation “JZ”

Wetted Materials: 17-4 SS (sensor), 316SS (socket)
Socket Sizes: 1⁄4 NPT, 1⁄2 NPT, typical, see coding for com-

plete list. Consult factory for additional fittings.

Socket Location: Lower, 3, 9 and 12 o’clock
Ranges: Vac. thru 20,000 psi (see engineering units below

for other units)

Overpressure Limits (F.S.):
15- 3000- 7500-

2000 5000 20,000

Proof 200% 150% 120%
Burst 800% 300% 150%

Operating Temp.: 14/140°F (–10/60°C)
Temp. Error (Zero & Span): .04%/°F (<.02%°F Typical)
Storage Temp.: –4/158° (–20°/70°F)

DISPLAY

Type: LCD
Display Digits: Five (5)
Character Height: 3˝ case: .60˝, 41⁄2˝ case: .88˝
Backlite: Optional. On model 2174 only, battery backup

must also be selected. (Backlight is powered by bat­teries.)

Bar Graph: Yes
Battery Life: 3˝ >400 hrs., 41⁄2˝ >2000 hrs.
Battery Backup: Optional.
Agency Approvals:

Optional Intrinsically Safe Approvals
FM (Class I Div. I, Groups A-G)
CSA (Class I Div. I, Groups A-D)
(Class II Div. I, Groups E-G)
15,000 psi Max Full Scale Range

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) Arrow Key: Stores min and max values,

arrow key allows for scrolling thru menu items

Menu Key: Provides access to menu options
Backlite: (up) Arrow Key (Backlite optional): Manually

turns backlite on and off (auto off options in menu),
arrow key allows for five menu options. (up) arrow key
allows for scrolling thru menu options

Enter: Selects items in the menu

MENU MODE

Engineering Units: Up to 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. Units available are based on full scale
range of gauge.

Configuration Mode (Config): Allows for changes to

default settings of gauge 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

BULLETIN DIG-1

All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
© Ashcroft Inc. 2017 Rev. A 07/17

Ashcroft Inc., 250 East Main Street, Stratford, CT 06614 USA
Tel: [phone] • Fax: [phone]
email: [email protected] • www.ashcroft .com

Types 2074, 2174 & 2274

100%

Digital Industrial Gauge

THE MULTI-FUNCTIONAL
SOLUTION SAVES MONEY,
TIME AND SPACE…

n Battery powered local indication standard
n Optional 4-20mA output with turndown adjust-

able within range of gauge*

n Optional line powered (12-36 Vdc)
n Optional (1) or (2) SPDT switches with dead-

band adjustable to pressure range of gauge

*Accuracy based on full scale range of gauge

The benefit, one digital
pressure gauge replaces
three instruments…
mechanical pressure gauge,
transducer and switch

n Saves installation costs
n Saves on instrument costs
n Save on additional pipe cut-out(s)
n Save space

INDUSTRY LEADING FEATURES

Rugged design

n Three case styles: all welded stainless steel,

fiberglass reinforced thermoplastic or cast alu­minum case

- Weatherproof, NEMA4, IP 65 case

- SS and aluminum case offered with FM
certification, Class 1, Div. 1

n Polyester window protects display from

damage

n Strain relief to protect wiring while replacing

batteries

Industry leading display

n Extra large display height of .88˝ (41⁄2˝ case)
n Five digit display
n 10 units of measure
n % of full scale range bar graph

What you should know about
digital gauge accuracy…
Terminal Point versus Best Fit
Straight Line Accuracy.

Ashcroft Type 2070 Digital Gauge with
Terminal Point Accuracy

BENEFIT

100%

Terminal Point: end points (zero
and full scale) are connected
by a straight line

P R E S S U R E

0%

R A N G E

Competitive Digital Gauges with Best Fit
Straight Line (BFSL) Accuracy

BFSL minimizes linearity error
by “best” fitting a straight line
to a non-linear curve

P R E S S U R E

0%

PROBLEM

• Re-zeroing gauge may invalidate published accuracy
specification

• Zero offset at start-up may be the result of either:

- BFSL Calibration

- Zero Drift

.88˝ high digital
display (41⁄2˝ case)

R A N G E

• All points between
zero and full-scale
will be within stated
accuracy

• Allows zeroing of
gauge at start-up to
eliminate any sensor
offset

100%

• Linearity error mini­mized by “best” fitting
a straight line to a
non-linear curve

• BFSL gauges may
have a zero offset
at calibration that
must be maintained

100%

to ensure accuracy
throughout range

OPTIONS

Description Code Case Size
Case Options
Aluminum Case (black epoxy coated) AY 41⁄2˝ only
(Glass reinforced thermoplastic case standard)
Electropolished Case EC 3˝ only
(Brushed SS case standard)
Switch Options
(1) SPDT Switch (12-36Vdc) U1 3˝, 41⁄2˝
(2) SPDT Switch (12-36Vdc) U2 3˝, 41⁄2˝
Line Power with 4-20mA output AO 3˝, 41⁄2˝
(Line power (Type 2274) required for switching

options.)

(Terminal blocks standard with 4
(Flying leads standard with 3˝)
Wiring Options
Jacketed cable 3 ft. EN 41⁄2˝
Jacketed cable custom length JZ 3˝, 41⁄2˝
Keypad Options
Backlite BL 3˝, 41⁄2˝
Miscellaneous Options
Battery Backup BK 3˝, 41⁄2˝
(Battery standard with Type 2074)
(Available with Types 2174 & 2274)
Weatherproof ABS Gauge Carrying Case S7 3˝ only
Protective Rubber Boot (black) B1 3˝ only
Protective Rubber Boot (orange) B2 3˝ only
Protective Front Cover PP 3˝ only

SM

AccuSeal
Intrinsically Safe FM
FM/CSA

Bar graph % of full
scale range

(1⁄2 NPT lower only)

1

⁄2˝ case.)

SU 41⁄2˝ only

Safety

n Meets ASME B40.7
n Pressure range on keypad and bar graph

reduces accidental overpressure

n Proof pressure = 2X gauge range

Press to display minimum or
maximum pressure gauge
measured by

Breakthru AccuSealsm
Gauge Isolator*

n

Integral to gauge

n

Virtually eliminates process dead-leg

n

Eliminates need for standard diaphragm seal

n

Eliminating seal reduces temperature error

BULLETIN DIG-1

Range on keypad, complies
with ASME B40.7 to reduce
the possibility of accidental
overpressure

All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
© Ashcroft Inc. 2017 Rev. A 07/17

Optional:

• 4-20mA output (adjustable
within pressure range)

Battery level
indicator

Ashcroft Inc., 250 East Main Street, Stratford, CT 06614 USA
Tel: [phone] • Fax: [phone]
email: [email protected] • www.ashcroft .com

• Line power (12/36Vdc, 1 amp)

• (1) or (2) SPDT switch(es)

(adjustable to 100% of
pressure range)

Types 2074, 2174 & 2274

THICKNESS

THICKNESS

3.34

Digital Industrial Gauge

PRESSURE RANGES

in.Hg Comp. mmHg in.Hg in. ft. Bar/

psi

(vacuum) (psi) (pressure) (pressure) H2O

15 30

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

-15/0/15

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

H2O

mPa kPa

KSC

DIMENSIONS

Type 2074 (battery), 2174 (loop), 2274 (line), 41⁄2˝ aluminum case

Dia.

5.38

BOLT CIRCLE

3X Dia.

.22

.62

ACROSS FLATS

1/2 OR 1/4

NPT

Type 2074 (battery), 2174 (loop), 2274 (line),
41⁄2˝ fiberglass reinforced thermoplastic case

Dia. 5.37
BOLT CIRCLE

3X Dia. .24

.62

ACROSS FLATS

1/2 OR 1/4

NPT

Type 2074 (battery), 2174 (loop), 2274 (line), 3˝ stainless steel case

100%0%

w

w

m

w

o

c

.

.

a

t

s

f

h

o

r
c

38ϒ

37ϒ

4.34

Dia.

5.79

3.98

Dia. 5.81

3.9

ÿ5.79

4.87

1/2 NPT
CONDUIT

Dia.5.19

1.70

.61

3.47

3.3

4.00

MOUNTING

6˝ RING
DIA.

2.62

1.68

1.60

MOUNTING

6˝ RING
DIA.

2.6

1.4

1.5

.17

(Flange welded to case)

CLAMPING RING (1278G ONLY)

WASHER

RING

5.65˝
PANEL
OPENING

SPACER POST

(3 REQ’D)

“B” (3 REQ’D)

5/16˝ MAX PANEL

Flanged Mounting Ring

CLAMPING RING (1278G ONLY)

WASHER

RING

5.65˝
PANEL
OPENING

SPACER POST

(3 REQ’D)

“B” (3 REQ’D)

5/16˝ MAX PANEL

Flanged Mounting Ring

1.860

BULLETIN DIG-1

45 S

2074 Ashcroft Battery Power .25%

45 4.5˝

2174 Ashcroft 4-20 Loop .25%

30 3˝

2274 Ashcroft 24V Line Power .25%

2072

TypeSize

NOTES:
(1) Line power (Type 2274) required for switch options.

(2) Screw down terminals standard with 41⁄2˝ case. 3 feet of

jacketed cable standard with 3˝ case.

(4) FM not available with variation codes U1, U2, BL, Ao, NH,

NN, MN, HN, AY.
41⁄2˝includes aluminum case.

(6) On 2174 loop powered gauge only with BL option. BK option

also must be specfied in product code (XBKBL).

All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
© Ashcroft Inc. 2017 Rev. A 07/17

04 L

System

Case StyleDConnection Size Connection Location

S St. St. D Dry

45 ONLY

04 1/2 NPT
15 G 1/2 B

9/16-18

09

UNF 2B Female

7/16-20

LF

w/O-ring Seat

30 ONLY

9/16-18

RX

LH w/Cone

KJ 1/4 BSPF

1/4 VCR Swivel

SF

Female

1/4 VCR Swivel

SM

Male

BOTH

02 1/4 NPT
13 G 1/4 B

L Lower
E 9 O’Clock
D 3 O’Clock
T Top

100# X6W

Range Code

Ashcroft Inc., 250 East Main Street, Stratford, CT 06614 USA
Tel: [phone] • Fax: [phone]
email: [email protected] • www.ashcroft .com

Product Variations For all Gauge Sizes

XBK Battery Backup, for none Bat power Gauge

XBL Back light for display (6)
XAO 4-20mA, Output for Line Power Gauges
XU1 1 SPDT Switch (1), (2)
XU2 2 SPDT Switches (1), (2)
XFM Factory Manual Approval (4)
XNH Metal tag wired to case
XNN Paper tag bonded to case
X6B Cleaned for gaseous oxygen service
XC4 CD-4 error plot
XMF Free from mercury certiificate
XTS Throttle screw
XJZ Special cable length

XHN Mini Hirschmann Connector
XTU Throttle plug
XFF Front flange for panel mounting
XPP Protective front cover
XB1 Black rubber protective boot
XB2 Orange rubber protective boot

XEN Flying leads (standard on “Size 30” 3 ft.)
XAY Aluminum case
XSU Accu-Seal, sensor at end of socket, 2000 psi

max. 1⁄2 NPT only

For 3.0˝ gauges only

For 4.5˝ gauges only