Hazardous location transmitters

Model 970 Pressure Transmitter

Model 970 Pressure Transmitter

Designed for applications including offshore oil rigs, oil production platforms, natural gas pipelines and rig safety systems, 970 uses a solid machined stainless steel diaphragm.


  Full Scale Pressure Ranges 0-100 thru 0-100K, PSIA, PSIS (0-6.89 thru 0-6894 bar
Turndown (≤20K PSI) 4:1 with no degradation in static accuracy or thermal effec
Static Accuracy ≤±0.1% FSO (combined linearity, hysteresis and zero repeat)
≤±0.25% FSO (Ranges 25,000 PSI & Up
  Full Scale Output (FSO) 16 mA ±0.1% FSO
16 mA ±0.5% FS
Dynamic Response Time ≤300 mSec to reach 63% FSO
Temperature Effect on Zero ≤±1% FSO per 100°F (37°C)
Temperature Effect on Span ≤±1% FSO per 100°F (37°C)
Compensated Temperature 70°F to 170°F (21°C to 76°C)
Operating Temperature -40°F to 190°F (-40°C to 87°C)
Storage Temperature Limit -65°F to 250°F (-53°C to 121°C)


Supply Voltage:
12 to 30 Vdc
Power Supply Regulation Effect
≤±0.02% FSO per Volt
Output Signal
4 - 20 mA
Bridge Impedance 5000 Ohms nominal
Circuit Protection Varistor protected across the input leads for surges above 40 V and currents to 250 Amps peak with a pulse width of 20 μSecs. Reverse polarity protected
Insulation Resistance >200 MegOhms to case ground
Electrical Connection 1/2" NPT (M), 18 AWG wire, 72"
Wire Color Codes

Red +Power/Signal

Black -Power/Signal

Green Case ground

White No Connection


Enclosure Materials
0-100 thru 0-15K PSI
5-5 PH and 316 stainless steel (0-6.8 thru 0-1034 bar)

0-20K thru 0-100K PSI
316 SST and PH 13-8 Mo SST (0-1378 thru 0-6894 bar)
Wetted Parts
0-100 thru 0-15K PSI
15-5 PH stainless steel (0-6.8 thru 0-1034 bar)

0-20K thru 0-100K PSI
PH 13-8 Mo SST (0-1378 thru 0-6904 bar)
Shock Limitation
100 G’s
  Weight 24 oz. (0.680 kilograms)
  Identification Laser etched onto body
  Enclosure Classification NEMA 4X


Pressure Connection

0-50 thru 0-15K PSI
1/4" - 18 NPT Female (0-3.3 thru 0-1034 bar)

0-20K thru 0-50K PSI
1/4" F250-C High Pressure Tube (0-1378 thru 0-3447 bar)

0-60K thru 0-100K PSI
5/16" F312C High Pressure Tube (0-4136) thru 0-6894 bar)
Proof Pressure
0-100 thru 0-15K PSI
1.5 times FSPR or 20K PSI (1378 bar), (0-6.8 thru 0-1034 bar) whichever is less
0-20K thru 0-100K PSI
1.2 times FSP (0-1378 thru 0-6894 bar)
Burst Pressure
0-100 thru 0-15K PSI
≥ 2.3 to 5 times FSPR dependent on (0-6.8 thru 0-10342 bar) sensor
0-20K thru 0-100K PSI
1.5 times FSPR or 125K PSI (8618 bar) (0-1378 thru 0-6894 bar) whichever is less
Mounting Supported by process piping or optional mounting bracket


Bleed port (10K PSI and below)
Improved temperature compensation (<5%/100°F for zero/span)
Special range
DQ Cleaning for oxygen service
EA Special calibration run
JJ Direct mount indicator with explosion proof housing
JS Direct mount indicator
ME CSA explosion proof label
MR Modified electrical damping
NG ATEX flameproof label
NH Customer specified identification
NJ CE label
NK ATEX intrinsic safety label
NX CSA intrinsic safety label
NY FM explosion proof label
NZ FM nonincendive label
PW 1/8 DIN digital indicator (consult factory)
QA 316 stainless steel wetted parts
QB Inconel (X-750) wetted parts
QC Hastelloy (C-276) wetted parts
TF FM intrinsic safety label
TW Russia Intrinsic Safety and Flameproof
Y () Alternate pressure ports


Application of some available options may affect standard performance. Consult your Viatran Representative for details.