As Tough As The Roughnecks Who Use It
Everything on a oil & gas drilling rig needs to be tough. Our 1502 hammer union pressure transducer is built for extreme pressure, high vibration, and rough handling.
Certified & Ready
The 1502 HU is certified for global use in hazardous locations through CSA (Class 1, Div 1/Zone 0), ATEX (CE 0344 EX II1G Ex ia IIB T4 Ga), and IECEx (EX ia IIB T4 Ga). It's also NACE MR-01-75 and ISO 15156-3 compliant for sour gasses.
Easy Field Calibration
With the Shunt Cal feature, you can calibrate the transmitter to the right pressure range without having to pressure it up.
The welded body and durable electronics handle extreme vibration common in MWD and other high pressure processes.
When we first started the design for the HU, we made sure to pay attention to the details - like a wider top for easy access to the connector, and drain holes to keep it from filling with water.
Up to 20,000 psi
B.F.S.L. ≤ 0.25% of full scale
NIST up to ± 0.1% available in select ranges
Temperature Compensation Range
Up to -40 to 150° F (-40 to 65° C)
Temperature Effects on Zero & Span
± 0.026% FSO/°C (± 0.01% FSO/°F)
10 million cycles minimum
Less than 5mS
10-30 VDC on sensor
1124 ohms @ 30 VDC decreasing linearity to 0 ohms @ 10 VDC
>100 megohms @ 500 VAC, 70°C
CSA Intrinsically Safe
Class I, Div. 1, Groups C & D, EX ia IIB T4
Class I, Zone 0, AEx ia IIB T4
ATEX Intrinsically Safe
CE 0344 EX II1G Ex ia IIB T4 Ga (Ta = -40°C to +85°C)
IECEx Intrinsically Safe
EX ia IIB T4 Ga; Ta = -40°C to +85°C
with RST-5003 (4-20mA version only)
Output Signal @ 21° C
4-20 mA: 3-30 mA max
0-5 VDC: 110 mA inrush current
0-5 VDC: 3.5 mA operating current
100% of Full Scale
NACE MR-01-75 and ISO 15156-3 compliant Nickel Alloy
-50 to 248° F (-50 to 120° C)
-40 to 185° F (-40 to 85° C)