Altek TechChek Model 830 Manual

19 18
READ FUNCTIONS
Select read by pressing the DISPLAY/SOURCE/READ pushbut-
ton until  the word READ appears on the LCD display. The READ
functions measure the desired signal. Multiple scales are avail-
able for some functions. 
MIN/MAX
To read the Maximum or Minimum INPUT
since READ mode was entered, simply
switch to MAX or MIN. The value will
appear on the LCD along with the word
MAX or MIN. The MAX/MIN values are
automatically updated and may be viewed
at any time without interrupting the other...

21 20
READ DC and AC VOLTAGE OUTPUTS
mV, V, Vhi and Vac
Choose this function to measure from 0.00 to 110.00 millivolts (mV),
0.00 to 10.25 DC Volts (V). Use the high voltage connection to read
from 0.0 to 200.0 VDC (Vhi). See the next page for Volts AC.
1) Turn the Selector Knob to V
3) Press the DISPLAY/SOURCE/READ push-button until READ
appears on the display
4) Press the TYPE/ENG UNITS push-button to select mV, V, Vhi or
VAC on the display
5) Connect the red READ (+) lead and the black READ (-) lead...

23 22
MEASURE  THERMOCOUPLE SENSORS
Choose this function to read a thermocouple. The input of the
TechChek 830 is automatically cold junction compensated.
1) Disconnect the thermocouple from any instrument.
2) Turn the Selector Knob to T/C
3) Press the DISPLAY/SOURCE/READ push-button until READ
and any T/C TYPE appear on the display
4) Use the proper thermocouple wire and corresponding miniature
T/C connector to connect TechChek 830 to the thermocouple.
To Change the Thermocouple type
1) Press the...

25 24
CHECK CONTINUITY
Choose this function to check continuity. A tone will sound and a
sound symbol will appear on the display when the resistance
between the leads is less than 100 Ohms.
1) Plug the leads into the TechChek 830 as shown below.
2) Turn the Selector Knob to Ω
3) Press the DISPLAY/SOURCE/READ push-button until READ or
CONTINUITY appears on the display
4) Press the TYPE/ENG UNITS pushbuuton once to switch
between READ and CONTINUITY on the display
OPERATING INSTRUCTIONS
REDBLACK
READ...

27 26
REDBLACK
BLACK
BLACK
BLACK
RED
3
2
1RTD Element
OPERATING INSTRUCTIONS
MEASURE RTD SENSORS
MEASURE RTD SENSORS
Choose this function to read an RTD. Three wires must be use for
both 2 and three wire RTDs.
1) Disconnect the RTD from the instrument being calibrated.
2) Turn the Selector Knob to RTD
3) Press the DISPLAY/SOURCE/READ push-button until SOURCE
and any RTD TYPE appear on the display
4) Connect using 3 wires as in the diagrams on the opposite
page. Use a 3 wire connection to read a 4 wire...

29 28
REDBLACK
Frequenc
y Output Signal
Flowmeter
Flow Sensor
Variable Speed Drive
Controller
Transmitter
REDBLACK
Frequency Output Signal
Flow Meter
Line Frequency
Variable Speed Drives
Connection for signals with amplitudes below 10.25V RMSConnection for signals with amplitudes to 250 V RMS
COUNT FREQUENCIES
OPERATING INSTRUCTIONS
COUNT FREQUENCIES
Choose this function to use the 830 as a frequecny counter.
Available ranges are from 0.01 to 10.00 kHz, 1 to 1000 Hz and
from 1 to 1000 CPM...

31
30
OPERATING INSTRUCTIONS
CALIBRATE TRANSMITTERS
ANY SOURCE FUNCTION AND
READ mA, READ %, READ DP%
Choose this function to supply the input signal to the transmitter
and displaying the 4-20 mA output of the transmitter (used with 4-
Wire Transmitters). 
ANY SOURCE FUNCTION AND
P-XMTR mA, P-XMTR %, P-XMTR DP%
Choose this function to simultaneously supply power to a 2-Wire
transmitter while supply the input signal to the transmitter and
display the 4-20 mA output of the transmitter. 
1) Disconnect both...

33 32
Pressure
Source
PROCESS CALIBRATORSOURCE READQUIK-CHEK®
HI
SET
LOMIN READMAX
TYPE
ENG UNITS °C / °F
ZERO
DISPLAY
SOURCE READREAD/POWER
TRANSMITTERPOWER
STORE
RESET
   mA  /  %
% DP FLOW
ΩRTD T/CVmAFREQPRESSURE
READ PRESSURE
Choose this function to measure pressure with a ModPak 91
module holder and one of the many QuikCal 90 pressure modules. 
1) Select the proper module for the pressure range of the process
2) Place the QuikCal 90 Module in the ModPak 91 holder
3) Plug the ModPak cable into the...

35 34
PROCESS CALIBRATOR
TYPE
ENG UNITS °C / °F
ZERO
DISPLAY
SOURCE READREAD/POWER
TRANSMITTERPOWER
STORE
RESET
   mA  /  %
% DP FLOWSOURCE READ
Ω
QUIK-CHEK®
RTD T/CVmA
HI
SET
LOMIN READMAX
FREQPRESSURE
OPERATING INSTRUCTIONS
CALIBRATE PRESSURE TRANSMITTERS
READ PRESSURE AND
P-XMTR mA, P-XMTR %, P-XMTR DP%
Choose this function to simultaneously supply power to a 2-Wire
pressure transmitter while supplying the input signal to the trans-
mitter and displaying the 4-20 mA output of the transmitter. 
1)...

37
36
SPECIFICATIONS
POWER & MEASURE 2-WIRE TRANSMITTERS
RANGES & ACCURACY:Same as for MILLIAMP SOURCE
OUTPUT CURRENT: up to 24.00 mA
TYPICAL DRIVE CAPABILITY:1200 Ohms @ 20.00 mA
COMPLIANCE VOLTAGE:nominal 25 VDC @ 20 mA
COMMON MODE ERROR:0.01% Full Scale/Common Mode Volt
2-WIRE TRANSMITTER SIMULATOR
RANGES:
1.00 to 24.00 mA; -18.8 to 125.0% of 4 to 20 mA; % DP Flow
ACCURACY:Same as for MILLIAMP SOURCE
LOOP VOLTAGE LIMITS:Mininum, 3 VDC; Maximum 45 VDC
OVERLOAD PROTECTION:Current limited to 25 mA...