1 Introduction
MANUAL TME400-VCF · EN08 · July, 01
st
2021
•
Optionally available in a version with remote meter
(distance from meter head to meter: 10 m;
see appendix C Dimensions)
•
2x pulse inputs selectable for Reed, Wiegand and external pulse transmitters
(remote meters)
•
1x contact input
•
1x HF output
(input pulse of pulse input 1 is output with defined pulse width of 1 ms)
•
1x LF output with defined pulse width (20 ms, 125 ms or 250 ms)
•
1x input for digital pressure sensors (see below)
•
1x temperature input Pt1000 (see below)
•
1x RS-485 with external power supply
•
1x optional power module
•
Power supply via 3.6V lithium cell or an external power supply which is assigned
to the RS-485 interface (supply via power module alone is not adequate and a
battery is required for support)
•
Archive memory for events, parameters, measurements
TME400-VCF
• In addition to the features of the TME400-VC, this version can be used for cus-
tody-transfer applications.
1.3.3.
Power supply
Battery-operated device
The TME400 is equipped with a replaceable 3.6 V lithium battery. The device is de-
signed for continuous operation for approximately 10 years. To achieve this, the de-
vices may be operated for a maximum of 15 minutes per day with input pulses of
1 Hz.
Battery-operated device with additional external power supply
An electric supply of the TME400 via the 4-20mA current loop reduces the power
consumption from the batterie and typically extends the service life of the battery to
more than 12 years.
If the TME400 is additionally electrical powered by the RS-485 interface, the service
life of the battery is typically extended to clearly more than 12 years.
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