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교정기기 > mA Loop Calibrator > Milliamp Calibrator (434)

 

 
Milliamp Calibrator (434)

 

 

 

 

모델

:

434

제조사

:

ALTEK

원산지

:

미국
 

 
상품 상세 설명
 

Altek 434 Milliamp Calibrator

Features:

  • Calibrate Loops with Laboratory Accuracy — (0.015% of Reading + 0.002 mA) Accurate to 0.005 mA from 4 to 20 mA.
  • All 4 to 20 mA Loop Functions — 0 to 24 mA Source, mA Meter, 2-wire Transmitter Simulator & DC Volt Meter in a single compact unit. Displays in mA & % 4 to 20 mA.
  • Powers Loop or Transmitter — Including HART Transmitters —Drives 1200 Ohm Loop Loads - selectable built-in 250 Ohm resistor for compatibility with HART transmitters and communicators.
  • User Settable QUIK-CHEKS — Store HI, SET, LO for instant recall.
  • AUTO-CHEK® Step — Automatically switches output in 2,3,5 or 10 steps from five seconds to 15 minutes.
  • AUTO-CHEK® Ramp — Automatic Ramp and Soak to smoothly stroke valves or simulate a process.
  • VALVE-CHEK® — Output checks valve and actuator openings and closings.
  • Automatic Stepping & Ramping
  • Easily Check Valves & Actuators

    Specifications

    Milliamp Source

     

    Ranges:

    0.000 to 24.000mA with 1 microamp resolution
    -25.00 to 125.00% of 4-20mA with 0.01% resolution

    Typical Drive Capability:

    1200 Ohms @ 20.00 mA

    Power to Drive Receiver:

    Nominal 24 VDC

    Compliance Voltage:

    0 to 500 Ohm Load: 12 V nominal @ 20.000 mA
    500 to 1200 Ohm load: 24 V nominal @ 20.000 mA

    Power & Measure 2-wire Transmitters

     

    Ranges:

    0.000 to 24.000mA with 1 microamp resolution
    -25.00 to 125.00% of 4-20mA with 0.01% resolution

    Output Current:

    Up to 24.00 mA

    Typical Drive Capability:

    1200 Ohms @ 20.00 mA

    Power to External 2-wire transmitter:

    Nominal 24 VDC

    Read Milliamps

     

    Ranges:

    0.000 to 24.000mA with 1 microamp resolution
    -25.00 to 125.00% of 4-20mA with 0.01% resolution

    Voltage Burden:

    0.9V at 4 mA, 1.2V at 20 mA, 1.4V at 24 mA

    Read Transmitter Test Jecks or Accross Loop Diodes

     

    Ranges:

    0.000 to 24.000mA with 1 microamp resolution
    -25.00 to 125.00% of 4-20mA with 0.01% resolution

    Overvoltage Protection:

    Fuse, 5 x 20 mm, 250 mA, 250V

    Input Impedance:

    15 Ohms

    Simulate 2-wire Transmitters

     

    Ranges:

    1.000 to 24.000 mA

    Loop Voltage Limits:

    Minimum: 2 VDC
    Maximum: 50 VDC

    Measure DC Volts

     

    Range:

    -100.0 to +100.0 DC Volts

    Accuracy:

    ±0.5% of Full Scale Reading from 0.0 to 100.0V

    Input Resistance:

    > 1 Meg Ohm

    Source Resistance Effect:

    0.01% per 100 Ohms

    General

     

    Milliamp Accuracy:

    ±(0.015% of Reading + 0.002 mA)

    Temperature Effect:

    ±0.008%/°C based on 23°C ±25°C

    Batteries:

    Six "AA" batteries (Alkaline supplied and recommended)

    Battery Life:

    Milliamp Source and 2-wire Modes: Nominal 44 hours at 12 mA, 30 hours at 20 mA with 250 ohm load
    Other Functions: Nominal 75 hours

    AC Adapters:

    Optional, 120 or 240 VAC, 50/60 Hz

    Low Battery Indication:

    "BAT" indication on the display at 6.5 V nominal, approximately 4 hours left

    Operating Temperature Range:

    -5 to +130 °F (-20 to +55°C)

    Storage Temperature Range:

    -13 to +130 °F (-25 to +55°C)

    Relative Humidity:

    10 to 90%, non-condensing for 24 hours

    Warm up Time:

    10 seconds to rated accuracy, 2 minutes to full accuracy

    Dimensions:

    158.1mm (6.23 in) x 83.1mm (3.27 in) x 49.3mm (1.94 in)

    Weight:

    1lb 2oz (0.5kg)

     

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