MILLIAMP
 ALTEK
Process Loop
Calibrator Model 434 Digital Accuracy PLUS Analog Simplicity
Provides an unmatched combination of laboratory accuracy, simplicity
and convenience.
- 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.
Easy-to-Use
Automatic Functions.
- Automatic
Stepping & Ramping
Be
in two places at once by using the Model 434's AUTO-CHEK ® . Connect
behind the panel or replace a transmitter, then check the output
in front of the panel or another remote location within the loop.
Use the Automatic Ramp/Soak to simulate a running process and
check valves for smooth operation. Independently select your ramp
time, soak time and endpoints for total flexibility.
- Easily
Check Valves & Actuators
Check valve and
actuator operation with the built-in VALVE-CHEK ® function. Choose
intervals from 5 to 900 seconds to repeatedly step up & down
to check valves at and around the fully closed position (3.8,
4.0 & 4.2 mA) and the fully open position (19.8, 20.0 &
20.2 mA). Or manually step through the points and turn the knob
for fine adjustment.
TO
THE TOP
 Model
334A Loop
Calibrator
Great
Value! High Performance!
Checks all loop signals—mA,
% of Span and DC V. Save time on every mA transmitter, recorder,
alarm trip, I/P and computer you calibrate. Flip the QUIK-CHEK switch
for instant outputs of 4 and 20 mA accurate to 0.006 mA!
- 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.
Optional:
AC Adapter
TO
THE TOP
A
Compact Milliamp Calibrator.
That Fits In your Pocket.
- Basic
Milliamp Functions —
Source 0.00 to 24.00
mA or -25.0 to 125.0%, read mA or percent to 24.00 mA, simulate
2-wire transmitters, power and measure 2-wire transmitters.
- Basic
Accuracy— ±(
0.08% of 24 mA Span + 1 LSD)-Source to read within 0.03 mA.
- Quik-Chek
Outputs— HI and
LO push-buttons for instant output of 20.00 or 4.00 mA. Speed
sensitive digital potentiometer adjusts output from any QUIK-CHEK
position for valve stroking.
- Power
Up Transmitters— Drives
to 700 ohms loads .
- Long
Battery
Life —
Sources 12 mA for
over 22 hours, 20 mA for over 16 hours. Turns itself off after
30 minutes.
- Dependable
Operation — Fuseless
protection to 120 V AC/DC.
Optional
Carrying Case
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