<< Altek Milliamp CalibratorsAltek 334A
Process Loop Calibrator
|
- All 4 to 20 mA Loop Functions
Source 0.00 to 24.00 mA or -25.0 to 125.0% read
mA or percent to 52.00 mA, simulate 2-wire
transmitters, measure -99.99 to 99.99 volts DC power
& read 2-wire transmitters.
- Quik-Chek Switch
Select 4 or 20 mA output or 2-wire simulation.
Accurate to ±0.006 mA.
- Full Range 10 Microamp Resolution
Adjust 4 digit display to ±0.05% without range
change.
- Long Battery Life
3x9 volt alkaline batteries source 20 mA for
over 20 hours, 12 mA for over 33 hours; 2-wire
simulate and read for 150 hours. Much longer than
NiCd batteries or calibrators with a single 9 V
battery!
- Drive Capability
1200 Ohms with current limited, fuseless
protection to 135 V AC/DC.
|
 
Altek 334A Shown
|
|
|
The Altek
334A will check, calibrate and measure all your current
signal instruments in a 4 to 20 milliamp DC loop. Use at
every point in your loop. Source & Read 0.00 to 24.00
mA, Simulate a 2-wire transmitter or use the Model 334A
to simultaneously power & measure your 2-wire
transmitters. Toggle the display to show milliamps or
percent of 4 to 20.
Calibrate recorders, digital indicators, stroke valves
or any other instruments that get their input from a 4
to 20 mA loop. Easily set any value to within 0.01 mA
with the speed sensitive digital potentiometer.
The "Quik-Chek" switch provides rapid checking of 4.00,
20.00 and a third point between 0.00 to 24.00 mA.
Check loop wiring and receivers by using the Model 334A
in place of a 2-wire transmitter. Simulate a changing
process input to check loop response and control
settings. The Model 334A uses any loop power from 3 to
45V DC.
Check controller outputs or measure the milliamp signal
anywhere in the loop. The Model 334A measures 0.00 to
24.00 mA signals with much greater accuracy than a
typical multimeter. Toggle the display to show milliamps
or percent of 4 to 20.
Simultaneously measure the output of a 2-wire
transmitter while using the internal batteries to supply
up to 27V DC to power the transmitter. Handy for
checking transmitters in the field or on the bench.
Measure from -99.99 to 99.99 VDC with 10mV resolution.
Use it to check loop power supplies, I/V converters, 1
to 5 Volt signals and battery voltages.
|
|
|
|
)
PDF Help