![Controlotron 1010PVDN Скачать руководство пользователя страница 157](http://html1.mh-extra.com/html/controlotron/1010pvdn/1010pvdn_field-manual_2658905157.webp)
4-10
1010PVNFM-3A
Section 4
If the multimeter reading does not match, use the numeric keys to type in the multi-
meter reading.
Press to register setting. This adjusts the meter’s DAC (digital-to-analog con-
verter) so that a 2.00 Volts output corresponds with 2.00 Volts on the multimeter.
Re-check the multimeter to make sure that it is now reading 2.00 Volts.
4.5.4 PGEN OUTPUT TRIM (Pgen 1 & Pgen 2)
NOTE: Not available in Custody Transfer flowmeters.
(Note: Can be trimmed to within 1.25 Hz of nominal.)
To calibrate a pulse rate output (Pgen1 or Pgen2):
Connect a frequency counter to the supply and return terminals of the pulse rate out-
put under test.
Move the highlight to the port to be tested , press the , then press
to move the cursor to Trim @ 1kHz.
Press . This triggers a 1 kHz pop-up window. The frequency counter should now be
reading 1 kHz.
If the frequency counter reading does not match, use the numeric keys to type in the
frequency counter reading.
Press to register setting. This adjusts the meter’s DAC (digital-to-analog con-
verter) so that a 1 kHz output corresponds with 1 kHz on the frequency counter.
Re-check the frequency counter to make sure that it is now reading 1 kHz.
4.6
THE RTD CALIBRATE MENU
(optional)
The RTD Calibrate Menu appears on all 1010N models. Use this menu to calibrate the 991T or
1011TN RTD Temperature Sensors to an external standard. It is important to note that Con-
trolotron RTD temperature sensors are factory-calibrated for high accuracy. We recommend
that before deciding to perform the calibration, check the current RTD reading in [Diagnos-
tics/Liquid Data]. You may find that you do not even need to calibrate the sensor. In any case,
make sure that the temperature reading stabilizes before proceeding further. The RTD Cali-
brate menu allows you to perform an external calibration, which can be accomplished either
by data entry of the current RTD temperature or by a 32
0
F (0
0
C) Ice-Bath procedure. You can
switch between the intrinsic and external calibration modes at any time.
NOTE: If you perform an external temperature calibration, you should mark and
record the location of each connector and sensor-cable. Once you have re-
calibrated the temperature sensors, changing the sensor/connector orienta-
tion established during the procedure may void the calibration.
To access the RTD Calibrate menu press
ENT
ENT
ENT
Содержание 1010PVDN
Страница 185: ...APPENDIX A Couplant Installation Instructions...