Palmer Wahl C150 Documenting Multifunction Calibrator

A documenting multifunction calibrator for temperature, process and pressure

The Palmer Wahl C150 is the top instrument of the C series of calibrators. The datasheet describes it as an advanced documenting multifunction calibrator that works as a simulator (in and out) and as a dual channel thermometer (in and in) for comparison calibration. It measures and generates temperature, resistance, process, pressure and frequency signals over two isolated channels, calibrates thermistors, and has a HART communicator integrated into the ACL500 modem for HART transmitter calibration.

The C150 stores audit trails and the datasheet states that it complies with both 21 CFR Part 11 and the NADCAP Heat Treatment standard AMS 2750. Those statements are quoted from the datasheet as printed. Ten calibration procedures can be stored on the instrument, results are saved on site and uploaded later with DATACAL software to issue calibration certificates.

Features

• Temperature accuracy up to 0.005 percent of reading; resistance up to 0.006 percent of reading with a 50 kohm range; current up to 0.007 percent of reading and 100 mA range with a 24 V loop supply; voltage up to 0.005 percent of reading and 50 V range; frequency up to 0.01 percent of reading and 100 kHz range.
• Thermocouples (14 types) and RTDs (12 types), plus thermistors measured with the Steinhart-Hart equation on the 50 kohm range.
• Pressure measurement and simulation with the external digital pressure module ACL433, in absolute and relative ranges to 1000 bar absolute, with accuracy of 0.05 percent full scale from 10 to 40 C.
• Easy connect terminals accept wires to 3 mm or 10 AWG, 4 mm banana plugs and compensated thermocouple connectors.
• Memory of 10,000 data points, recalled on screen as a curve or a list; scaling, ramps, steps, synthesizer, square root and statistical functions.
• IP54 case in an anti-shock rubber holster with a wide backlit display; can drive baths and dry-blocks with the ACL600 cable.

C150 specifications

Resistive probe accuracy

The datasheet gives these measurement specifications at 23 C plus or minus 5 C with 4-wire probes; accuracy is in percent of reading plus a fixed value, and resolution is 0.01 C except for Cu10 at 0.10 C.

Process ranges

Pre-programmed steps include 4-20 mA and 0-20 mA linear and quadratic and a valve test sequence, which suit transmitter and valve positioner checks.

C series comparison and selection

• The datasheet compares C50, C75, C100 and C150; the C150 is the only member with the 100 mA range, the 50 kohm range and the 100 kHz frequency range printed in its column.
• Choose it when you need documenting calibration with audit trails, HART transmitter calibration and dual channel comparison, and a smaller C-series model if you only need simulation.
• Order the ACL433 module separately for pressure work, and the ACL600 cable if you drive baths or dry-blocks; call for the full accessory list.
• Use the DATACAL software to configure the unit and to manage and export results.

Applications in Oman and the GCC

Instrument technicians in refineries, power stations and heat treatment shops use one portable calibrator to check RTD and thermocouple transmitters, 4-20 mA loops, pressure transmitters and process indicators. The AMS 2750 statement matters for aerospace heat treatment work, so check the requirement with your auditor before relying on it.

Selection and installation notes

A multifunction calibrator is selected from the signals and sensors you need to measure and simulate. Check the ranges and sockets, the pressure modules, the leads and the battery before use, let the instrument warm up, and enter the device settings correctly before documenting a result. Keep the calibration certificate on file and plan the re-calibration interval according to your quality system.

Information needed for a quotation

Send the full model code, the quantity, the delivery location in Oman or the GCC, the intended use and any accessories needed, so that the complete package can be quoted together.

Documents and supply information

The manufacturer data sheet is attached to this page and should be read together with the project specification and the site risk assessment before a purchase is confirmed. Ratings, standards and dimensions are quoted as printed on that sheet. Lead time, stock position and certificates available with the shipment are confirmed in the quotation, and we supply to Oman and the wider GCC region for industrial, utility and building services projects.

Related items and documents

See more portable test and measurement instruments and calibration items in our range. The datasheet is attached; Seven Star LLC will quote the C150 with the accessories you need.