Thank you for purchasing a Hammer Union Pressure Transmitter from APG. We appreciate your business!
Please take a few minutes to familiarize yourself with your Hammer Union and this manual.
APG’s Hammer Union Pressure Transmitter is extremely rugged and designed for the environments of land-
based and oshore drilling installations. It is designed specically for use with the 1502 and 2202 Hammer
Wing Union. These units are constructed from materials designed for service with highly abrasive and
corrosive media and comply with new NACE standards.
Reading your label
Every APG instrument comes with a label that includes the instrument’s model number, part number, serial
number, and a wiring pinout table. Please ensure that the part number and pinout table on your label
match your order. The following electrical ratings and approvals are also listed on the label. Please refer to
the Certicate of Compliance and Declaration of Conformity at the back of this manual for further details.
Electrical ratings
Input: 10 to 28 VDC; Output: 4-20 mA / 0-5 VDC (per order)
Class I, Division 1, Groups C, D
Class I, Zone 0
Ex ia IIB T4: -40°C to 85°C; Enclosure Type IP67
AEx ia IIB T4: -40°C to 85°C; Enclosure Type IP67
Vmax Ui= 28VDC, Imax Ii = 110mA, Pmax Pi = 1W, Ci = 60.89nF, Li = 7.7mH
The following approvals only apply to the L24 (4-20mA) version
ATEX Directive:
Sira 13ATEX2023
II 1G Ex ia IIB T4 Ga
Ta: -40°C to 85°C
Ui ≤ 28 V, Ii ≤ 110 mA, Pi ≤ 1 W, Ci ≤ 60.89 nF, Li ≤ 7.7 mH
IECEx CSA 13.0004
Ex ia IIB T4 Ga
0344
IMPORTANT: Hammer Union Pressure Transmitter MUST be installed according to
drawing 9002460 (Intrinsically Safe Wiring Diagram) on page 7 to meet listed approvals.
Faulty installation will invalidate all safety approvals and ratings.
Chapter 2: Installation and Removal Procedures and Notes
• Tools Needed
You will need the following tools to install your 1502 or 2002 / 2202 Hammer Union Pressure Transmitter:
• A hammer
• 1502 or 2002 / 2202 wing nut
DANGER: Mismatched unions and nuts can result in dangerous or hazardous equip-
ment failures. Always check identications on both union pieces and nuts prior to installation. Only use pieces with matching union gure numbers, sizes, and pressure ratings.
• Physical Installation
• Ensure mating union faces are clean, dry, and free of debris.
• Mate your Hammer Union Pressure Transmitter onto the socket.
• Place the wing nut on the Transmitter and spin into place.
• Hammer the wing nut until tight.
• Electrical Installation
• Check the pinout table on your Hammer Union Pressure Transmitter against your order.
• Check that your electrical system wiring matches the pinout table on your Hammer Union.
• For instruments with connectors, make the connection. Otherwise, attach your wire to the provided
APG’s Hammer Union Pressure Transmitters can be congured with either a single-pin shunt calibration or
two-pin switched shunt calibration.
Single-Pin Shunt Calibration Procedure
APG’s Hammer Union Pressure Transmitters with single-pin shunt cal provide a full scale output (20.0 mA or
5 VDC) when 10 to 28 VDC is applied to the designated Shunt Cal pin. See the pinout chart on your Hammer
Union Pressure Transmitter’s label.
• Check the pinout table on your Hammer Union Pressure Transmitter.
• For 0 - 5 VDC Hammer Unions, connect +/- Power and +/- Signal, with a volt meter connected across
+/- Signal.
• For 4-20 mA Hammer Unions, connect +/- Signal, with - Signal connected through an Ammeter.
• Apply 10 to 28 VDC to the Shunt Cal pin.
• If the instrument electronics are opperating properly, the output signal will go to full scale (5 VDC or 20
mA).
Two-Pin Shunt Calibration Procedure
APG’s Hammer Union Pressure Transmitters with two-pin shunt cal provide a full scale output (20.0 mA or 5
VDC) when + Shunt is shunted to - Shunt. This is usually accomplised via an external switch. See the pinout
chart on your Hammer Union Pressure Transmitter’s label.
• Check the pinout table on your Hammer Union Pressure Transmitter.
• For 0 - 5 VDC Hammer Unions, connect +/- Power and +/- Signal, with a volt meter connected across +/-
Signal, and an open switch between + Shunt Cal and - Shunt Cal.
• For 4-20 mA Hammer Unions, connect +/- Signal, with - Signal connected through an Ammeter, and an
open switch between + Shunt Cal and - Shunt Cal.
• Close the open switch between + Shunt Cal and - Shunt Cal, ectively applying power to - Shunt Cal. (+
Power for 0 - 5 VDC, and + Signal for 4 - 20 mA, is tied to + Shunt Cal inside the Hammer Union)
• If the instrument electronics are opperating properly, the output signal will go to full scale (5 VDC or 20
mA) when the switch is closed.
• Removal Instructions
Removing your Hammer Union Pressure Transmitter from service must be done with care. It’s easy to create
an unsafe situation if you are not careful to follow these guidelines:
• Make sure the pressure is completely removed from the line where your sensor is installed. Follow any
and all procedures for safely isolating any media contained inside the line or vessel.
• Remove the Hammer Union wing nut.
• Remove your Pressure Transmitter.
• Clean the sensor’s tting and diaphragm of any debris (see above instructions) and inspect for damage.
• Store your sensor in a dry place, at a temperature between -40° F and 180° F.
DANGER: Removing your Hammer Union Pressure Transmitter while there is still
pressure in the line could result in injury or death.
Chapter 3: Maintenance
• General Care
Your Hammer Union Pressure Transmitter is designed to be maintenance free. As such, there are no
customer servicable parts on or in the device. However, in general, you should:
• Avoid touching the diaphragm. Contact with the diaphragm, especially with a tool, could permanently
shift the output and ruin accuracy.
• Clean the diaphragm or the diaphragm bore only with extreme care. If using a tool is required, make
sure it does not touch the diaphram.
• Repair and Returns
Should your Hammer Union Pressure Transmitter require service, please contact the factory via phone,
email, or online chat. We will issue you a Return Material Authorization (RMA) number with instructions.
• Phone: 888-525-7300
• Email: sales@apgsensors.com
• Online chat at www.apgsensors.com
Please have your Hammer Union Pressure Transmitter’s part number and serial number available. See
Waranty and Warranty Restrictions for more information.
IMPORTANT: All repairs and adjustments of the Hammer Union Pressure Transmitter
must be made by the factory. Moding, disassembling, or altering the Hammer Union
Pressure Transmitter on site is strictly prohibited.
Certificate: 1916494 Master Contract: 237484 (237484)
Project: 70177689 Date Issued: 2018-06-26
Issued to: Automation Products Group Inc
1025 West 1700 North
Logan, Utah 84321
USA
Attention: Joseph James
The products listed below are eligible to bear the CSA Mark shown
with adjacent indicators 'C' and 'US' for Canada and US or with adjacent
indicator 'US' for US only or without either indicator for Canada only.
Issued by:
PRODUCTS
CLASS 2258 04 - PROCESS CONTROL EQUIPMENT - Intrinsically Safe, Entity - For Hazardous Locations
CLASS 2258 84 - PROCESS CONTROL EQUIPMENT - Intrinsically Safe, Entity - For Hazardous Locations -
To U.S. Requirements
Class I, Division 1, Groups C, D
Class I, Zone 0
Ex ia IIB T4
AEx ia IIB T4
Hammer Union Pressure Sensor, Model HU-Ln-IS, HU-1502SS-Ln, and HU1502I-Ln (where Ln = L1,
L3, L24 or L27). Temperature Code Rating T4; Ambient range -40°C to +85°C; Enclosure Type: IP65
and IP67; Maximum Working Pressure: 20,000 PSI; Installed as per Drawing 9002460; Intrinsically Safe
with the following Entity Parameters:
Vmax, Ui = 28Vdc
Imax, Ii = 110mA
Pmax, Pi = 1W
Ci = 60.89nF
Li = 7.7mH
To maintain IP67/65 rating, the equipment shall be installed with a certified IP67/65 mating connector.
This device must be connected to a NRTL approved safety barrier
Note: Suffixes are added to indicate options not affecting safety.
APPLICABLE REQUIREMENTS
CAN/CSA-C22.2 No. 0-10 (R2015) General Requirements – Canadian Electrical Code, Part II
CAN/CSA-C22.2 No. 60950-1-07 Information technology Equipment – Safety – Part1: General Requirements
CAN/CSA-C22.2 No. 60079-0:15 Explosive Atmospheres - Part 0: Equipment - General r equirements
CAN/CSA-C22.2 No. 60079-11:14 Explosive Atmospheres – Part 11: Equipment protection by intrinsic safety "i"
UL 60950-1 Edition 2 Information technology Equipment – Safety – Part1: General Requirements
ANSI/UL 60079-0:13 Electrical Apparatus for Explosive Gas Atmospheres - Part 0: General Requirements
ANSI/UL 60079-11:13 Electrical apparatus for Explosive Gas Atmospheres - Part 11: Intrinsic Safety “i”
The manufacturer is required to apply the following markings:
Products shall be marked with the markings specified by the particular product standard.
Products certified for Canada shall have all Caution and Warning markings in both English and French.
Additional bilingual markings not covered by the product standard(s) may be required by the Authorities Having
Jurisdiction. It is the responsibility of the manufacturer to provide and apply these additional markings, where
applicable, in accordance with the requirements of those authorities.
The products listed are eligible to bear the CSA Mark shown with adjacent indicators 'C' and 'US' for Canada and
US (indicating that products have been manufactured to the requirements of both Canadian and U.S. Standards) or
with adjacent indicator 'US' for US only or without either indicator for Canada only.
(1) Submittor's name, trademark, or the CSA file number (adjacent the CSA Mark).
(2) Catalogue / Model designation.
(3) Entity Parameters
(4) Date code / Serial number traceable to month and year of manufacture.
(5) Hazardous Location designations.
(6) The words "Exia, INTRINSICALLY SAFE".
(7) Temperature code T4.
(8) Ambient -40°C to +85°C
(9) Maximum working pressure.
(10) Enclosure Type: IP 65/67
(11) The CSA Mark with the c and us qualifiers as applicable.
The products listed above are eligible to bear the CSA Mark with adjacent indicators “C” and “US” for Canada
and US or with adjacent indicator “US” for US only or without either indicator for Canada only.