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·çÇÁ Ķ¸®ºê·¹ÀÌÅÍ ALTEK-334A [4-20mA ¼Ò½º]
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»ç¿ë±Ô°Ý :4-20mA ¼Ò½º


¢Ã 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.
¢Ã Quik-Chek Switch — Select 4 or 20 mA output or 2-wire simulation. Accurate to ¡¾0.006 mA.
¢Ã Full Range 10 Microamp Resolution — Adjust 4 digit display to ¡¾0.05% without range change.
¢Ã 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!
¢Ã Drive Capability — 1200 Ohms with current limited, fuseless protection to 135 V AC/DC.

¢Ã Milliamp Source

Ranges

0.00 to 24.00 mA; -25.0 to 125.0 % of 4 to 20 mA

Accuracy

Quik-Chek 4mA ¡¾(0.03% of 4mA + 0.01 mA) = 0.011mA
Quik-Chek 20mA ¡¾(0.03% of 20mA + 0.01 mA) = 0.016mA
0 to 24mA ¡¾(0.05% of Reading + 1 LSD)

Typical Drive Capability

1200 Ohms @20.00 mA with fresh batteries, 800 Ohms @ 20.00 mA with low batteries

Compliance

Nominal 27 VDC @20 mA with fresh batteries

¢Ã Power & Measure 2-wire Transmitters

Ranges

0.00 to 24.00 mA; -25.0 to 125.0 % of 4 to 20 mA

Accuracy

Quik-Chek 4mA ¡¾(0.03% of 4mA + 0.01 mA) = 0.011mA
Quik-Chek 20mA ¡¾(0.03% of 20mA + 0.01 mA) = 0.016mA
0 to 24mA ¡¾(0.05% of Reading + 1 LSD)

Output Current

Up to 24.00 mA

Typical Drive Capability

1200 Ohms @20.00 mA with fresh batteries, 800 Ohms @20.00 mA with low batteries

Compliance

Nominal 27 VDC @20 mA with fresh batteries

¢Ã 2-wire Transmitter Simulator

Ranges

0.00 to 24.00 mA; -25.0 to 125.0 % of 4 to 20 mA

Accuracy

Quik-Chek 4mA ¡¾(0.03% of 4mA + 0.01 mA) = 0.011mA
Quik-Chek 20mA ¡¾(0.03% of 20mA + 0.01 mA) = 0.016mA
0 to 24mA ¡¾(0.05% of Reading + 1 LSD)

Loop Voltage Limits

Minimum: 2 VDC
Maximum: 100 VDC

Overload Protection

Current limited to 25 mA nominal

¢Ã Milliamp Read

Ranges

0.00 to 52.00 mA; -25.0 to 300.0 % of 4 to 20 mA

Accuracy

Quik-Chek 4mA ¡¾(0.03% of 4mA + 0.01 mA) = 0.011mA
Quik-Chek 20mA ¡¾(0.03% of 20mA + 0.01 mA) = 0.016mA
0 to 24mA ¡¾(0.05% of Reading + 1 LSD)

Voltage Burden

0.9V at 4 mA, 1.2V at 20 mA, 1.9V at 50 mA excitation current

¢Ã Read DC Volts

Range

-99.99 to 99.99V DC

Input Impedance

>2 Meg Ohms

¢Ã General

Accuracy

Quik-Chek 4 & 20 mA ¡¾(0.03% of Setting + 1 LSD)
Milliamp & % Ranges ¡¾(0.05% of Reading + 1 LSD)
Read DC Volts ¡¾(0.05% of Span + 1 LSD)

Warm up Time

10 Seconds to specified accuracy, 2 minutes to maximum accuracy

Temperature Effect

Milliamp Ranges: ¡¾0.008% of Reading/¡ÆC
Read DC Volts: ¡¾0.012% of Span/¡ÆC

Batteries

Three 9V, (1604) batteries (Alkaline supplied and recommended)

Battery Life

Source and Power Transmitter: Nominal 33 hours at 12 mA, 20 hours at 20 mA with 250 ohm load
Read mA, DC V & 2-wire Simulate: Nominal 100 hours

Low Battery Indication

"BAT" indication on the display at approximately 4 hours left

Overvoltage Protection

Protected to 135V AC/DC for 30 seconds without fuses

Operating Temperature Range

-5 to +140 ¡ÆF (-20 to +60¡ÆC)

Storage Temperature Range

-22 to +160 ¡ÆF (-30 to +70¡ÆC)

Relative Humidity

10 to 90%, non-condensing for 24 hours from 0 to 35¡ÆC

Dimensions

121.9mm (4.8 in) x 66mm (2.6 in) x 35.8mm (1.41 in)

Weight

7.8oz (0.22kg)



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