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Altek 934 High Performance Milliamp and Voltage Loop Calibrator
Part Number:
ALTK 934
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please call (877)766-5412 to confirm
please call (877)766-5412 to confirm
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Price:
$2036.00 
USD (change)
USD (change) 
Simultaneously source and read any combination of process milliamp and voltage signals. Altek 934 High Performance Milliamp and Voltage Loop Calibrator combines all the functions of a milliamp and a voltage calibrator! Output and input signals are continuously displayed. The top half of the display indicates the output setting while the lower half shows the signal being measured.
Calibrate state-of-the-art equipment such as smart transmitters and indicators with your Altek 934. Full 5 digit resolution lets you check any brand of process control equipment. Your calibrations are correct to better than 0.02% of reading. This is several times more accurate than 31/2 to 51/2 digit multimeters reading millimaps.
Use the scaleable display to match the readings on the Altek 934 Calibrator to that of the equipment being calibrated. For example, if your 4 to 20 mA recorder scale is 0.0 to 300.0 gallons/hour you can set the Altek 934 to display 0.0 for 4 mA and 300.0 for 20 mA. No need to use your calculator or look-up tables to come up with the correct
milliamp values.
Six "AA" alkaline batteries source more than 20 hours continuous at 20 mA . . . more than 3 months of typical use. From the time the low battery indicator first comes on you have hours of power remaining to get you through a shift without interruption. The Altek 934 High Performance mA/V Loop Calibrator comes configured to automatically power down after 30 minutes of inactivity to save battery life.
Calibrate loop converters and isolators by simultaneously providing the input signal and measuring the output of the converter or isolator. Internal optoisolators withstand up to 500 VDC between the source and read leads. Calibrate and checkout all your process milliamp and voltage instruments with the "benchtop accurate" Altek 934.
Use at every point in your 4 to 20 milliamp loop. Source milliamps directly into your receivers with loop loads up to 1200 Ohms. Simulate 2-Wire Transmitters for checkout of field wiring and total loop testing. Power and measure 2-Wire or 4-Wire transmitters on the bench before installation. Read Transmitter & Controller outputs up to 52.00 mA. Display directly in milliamps, percent of 4 to 20 mA, percent of DP Flow or engineering units to match the scale of your process.
Instantly recall three output settings in each range with the handy QUIK-CHEK switch. All output settings are remembered for each function, even with the power off. Use the AUTO-CHEK to automatically switch the Altek 934 output from Zero to Span in 2, 3, 5 or 10 equal steps at intervals of 5 to 900 seconds. Connect behind the panel and do your calibration from the front...or simulate your 2-Wire transmitter and calibrate every device in the loop.
Calibrate and checkout all your DC Voltage instrumentation. Source up to 999.90 millivolts to simulate sensors and up to 20.000 Volts to check your process signal inputs. Measure voltages from -99.990 to +99.990 VDC to check your power supplies and the outputs from any process voltage equipment. Calibrate any 1 to 5 Volt device in a live 4 to 20 milliamp loop without disconnecting any wires. The Altek 934 High Performance mA/V Loop Calibrator will automatically source or sink 0 to >16 milliamps to clamp the test voltage in all source ranges. Output impedance is less than 0.2 Ohm to let you calibrate voltage instruments in milliamp loops without removing the input load resistors.
What's Included:
Calibrate state-of-the-art equipment such as smart transmitters and indicators with your Altek 934. Full 5 digit resolution lets you check any brand of process control equipment. Your calibrations are correct to better than 0.02% of reading. This is several times more accurate than 31/2 to 51/2 digit multimeters reading millimaps.
Use the scaleable display to match the readings on the Altek 934 Calibrator to that of the equipment being calibrated. For example, if your 4 to 20 mA recorder scale is 0.0 to 300.0 gallons/hour you can set the Altek 934 to display 0.0 for 4 mA and 300.0 for 20 mA. No need to use your calculator or look-up tables to come up with the correct
milliamp values.
Six "AA" alkaline batteries source more than 20 hours continuous at 20 mA . . . more than 3 months of typical use. From the time the low battery indicator first comes on you have hours of power remaining to get you through a shift without interruption. The Altek 934 High Performance mA/V Loop Calibrator comes configured to automatically power down after 30 minutes of inactivity to save battery life.
Calibrate loop converters and isolators by simultaneously providing the input signal and measuring the output of the converter or isolator. Internal optoisolators withstand up to 500 VDC between the source and read leads. Calibrate and checkout all your process milliamp and voltage instruments with the "benchtop accurate" Altek 934.
Use at every point in your 4 to 20 milliamp loop. Source milliamps directly into your receivers with loop loads up to 1200 Ohms. Simulate 2-Wire Transmitters for checkout of field wiring and total loop testing. Power and measure 2-Wire or 4-Wire transmitters on the bench before installation. Read Transmitter & Controller outputs up to 52.00 mA. Display directly in milliamps, percent of 4 to 20 mA, percent of DP Flow or engineering units to match the scale of your process.
Instantly recall three output settings in each range with the handy QUIK-CHEK switch. All output settings are remembered for each function, even with the power off. Use the AUTO-CHEK to automatically switch the Altek 934 output from Zero to Span in 2, 3, 5 or 10 equal steps at intervals of 5 to 900 seconds. Connect behind the panel and do your calibration from the front...or simulate your 2-Wire transmitter and calibrate every device in the loop.
Calibrate and checkout all your DC Voltage instrumentation. Source up to 999.90 millivolts to simulate sensors and up to 20.000 Volts to check your process signal inputs. Measure voltages from -99.990 to +99.990 VDC to check your power supplies and the outputs from any process voltage equipment. Calibrate any 1 to 5 Volt device in a live 4 to 20 milliamp loop without disconnecting any wires. The Altek 934 High Performance mA/V Loop Calibrator will automatically source or sink 0 to >16 milliamps to clamp the test voltage in all source ranges. Output impedance is less than 0.2 Ohm to let you calibrate voltage instruments in milliamp loops without removing the input load resistors.
What's Included:
- Carrying Case
- Six “AA” Alkaline Batteries
- Manufacturer's Statement of Calibration Practices
- Three-Year Warranty
- Instructions
The Good:
The Bad:
The Bottom Line:
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The Bottom Line:
Full Review
- Simultaneous Source & Read — Isolated to 500 V DC. Dual 5 digit Liquid Crystal Display. Fuseless protection to 120 V AC/DC.
- Multifunction — Source to 24.000 mA, 999.90 mV or 20.00 V DC, read to 24.000 and 52.00 mA, 999.90 mV or 99.990 V DC. Plus simulate and power/measure 2-wire transmitters.
- High Resolution — Up to 1 microamp and 10 microvolt. Convenient ranges for % of 4-20 mA, % DP flow and user adjustable engineering units.
- High Accuracy — ±0.02 % of reading. Source to within 0.004 mA, 0.2 mV or 0.004 V.
- QUIK-CHEK Switch — Instantly recall any 3 outputs for each range. Fast, easy adjustment with our multi-speed "digital potentiometer."
- AUTO-CHEK — Automatically sequenced outputs in 2, 3, 5 or 10 equal steps at intervals of 5 to 900 seconds.
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