Altek Model 235/TPG
 Voltage Calibrator: mV, V, Percent Ranges

Altek 235 Shown   Product Information Datasheet 90 KB PDF Help

• Calibrate Voltage Instruments—
  Simulate Inputs and check Outputs
• Three Ranges with 0.05% Accuracy—
  0.0 to 199.9 Millivolts, 0.00 to 19.99 Volts,
  -25.0 to 199.9% of 1 to 5 Volts
• Calibrate Live Voltage Input Receivers—
  No need to disconnect loop
• "Quik-Chek" Switch—
  Set HI & LO outputs to match your Span & Zero
  Instantly switch between HI & LO outputs
• Automatic Overload Protection—
  Withstand 120V AC of DC without fusses

Display your readings with 0.1% resolution from 0.0 to 199.9 millivolts,  0.00 to 19.99 Volts or from -25.0 to 199.9% of the 1 to 5 Volt signal. Accuracy is ±0.05% of span.

Built-in Batteries calibrate high or low impedance voltage or millivolt instruments. Accuracy is maintained to devices requiring up to 30mA. Three nine volt alkaline batteries provide 100 hours of use into high impedance loads. An optional AC adapter plugs in for continuous use.

User adjustable Quik-Chek switch provides instant HI and LO settings in source mode. DIAL position selects a continuously adjustable potentiometer. Full 10 turns with high resolution allows fast, easy setting to any exact value.

Automatically calibrate live circuits without disconnecting wires. Circuit sinks up to 20mA to clamp test voltage in all ranges. 1 to 5 Volt devices in live 4 to 20m loops can be calibrated without any effect on the other instruments in the loop.

Precisely measure positive and negative voltages in the 100mV and 10V ranges. 0 to 100% is displayed in the 1 to 5 Volt range for checkout of process control instruments. High input resistance (>2 Megohms) minimizes loading effect on signals. Special protective circuitry withstands misconnection to 120V AC in any mode without fuses.

Display digits are 0.35" (9mm) high for readability is readability from across the room. Non-glare liquid crystal display is readable in any light... even in direct sunlight. The digital measuring circuit is independent and measures the actual input or output.

The Altek Model 235 is rugged, yet lightweight and pocket sized. Backed by a three year warranty, the Model 235 is toolbox tough. Latest LSI circuitry and wide temperature range components make the Model 235 ideal for use in the field, control room and shop.

Benchtop accuracy in a toolbox calibrator assures fast, precise setting of trips, recorders, controllers, loggers, computers and analysis instruments. Altek brings you the handy Model 235 Process Voltage Analyzer at a cost low enough for every check-out and maintenance person.