Electronic Display Unit »EDU 32 FP«

Electronic Display Unit »EDU 32 FP« • Ficha de Dados

General Overview

Application

The EDU 32 FP accessory is a microcomputer-controlled counter and display apparatus. It is designed to be used in conjunction with RITTER Gas Meters, to count and display the abso-lute volume and flow-rate of Gases flowing through the RITTER Meter. It consists of a unit in a separate (desk top) casing with a two-line Plain-Text-LCD-Display, and can be used with all types of RITTER Gas Meters. The following individual alterations and functions can be programmed via the Control Buttons:

1. Gas Meter type being used
2. Individual measurement range (min./max. flow rates) for custom-built Gas Meters
3. Upper and lower limiting values for Flow Rate
4. Pulse Generator in use: Standard (200 Pulses per revolution of the measurement drum), Ex-Proof (50 Pulses/Revolution) or custom-built Models (customer-preferred number of pulses under 200 or 50 respectively)
5. Language German/English in the Display
6. Analog-Output: Current Output or Voltage Output
7. Contrast adjustment of the Display

Technical Data

Power supply

• either 110 V / 60 Hz or 230 V / 50 Hz (must be specified with order)
• Over-/undervoltage:
  • +15%
  • -5% (with Current Output »On«)
  • -20% (with Current Output “Off”)
• 6 Volt Accumulator for battery operation
• Standart power socket, power cord ⁽¹⁾

Input

Pulses from Pulse Generator built into Gas Meter, round 5-pin-socket suitable for all RITTER Drum-type Gas Meters and Bellows-type Gas Meters (Type and Model programmable via the control buttons).

Output

1. Interface RS 232 (Standard Sub-D-9-pin-socket):
   • Signal: +/- 15 Volts
   • Transmission rate: 9,600 Baud
   • Data = 8 Bit, Parity = N, Stopbit = 1
2. Analog Output, programmable, round 5-pin-socket:
   1. Current Output: 4 – 20 mA or 0 – 20 mA or
   2. Voltage Output : 0 – 1 Volt

Display

• large 2-line LCD Display, 16 characters per line
• Display language programmable: English / German
• Display contrast adjustable (via the Menu)
• Display of:
  • measured Gas Volume in [Liters]
  • actual Flow Rate in [Liters per hour]
  • programmed Gas Meter type/model
  • power status (Mains / Battery / Low Batt)

Control elements

• Push-buttons, waterproof

Further Functions

• Data transmission via RS 232 to a PC
• Configuration of the EDU 32 FP from the PC
• Pre-selection of a minimal or maximal Flow Rate
• Acoustic Signalling (Beep) when the Flow Rate values exceed the pre-selected min./max. range
• Power supply for the power interface can be turned off (to in-crease the running time during battery operation)

Control Codes

(for data transmission from Interface RS 232 to Computer)

• Ctrl-V (Hex 16) provides: VOL 00000,00 LTR
• Ctrl-F (Hex 06) provides: FLOW 000,00 L/H
• Ctrl-C (Hex 03) causes: RESET
• Ctrl-T (Hex 14) provides: Type + Power Status

Fuse

• 0.1 Ampere – located at the rear wall in a fuse drawer below the power socket. The fuse drawer contains a spare fuse as well.

Dimensions

• Width x depth x height = 155 x 200 x 120 mm

Weight

• 1,4 kg

Temperature Range

• 0 °C to + 50 °C

Scope of supply

• Power cord (with delivery into countries with German Standard for socket / plug only)
• Connection cord to Pulse Generator

V 5.2 / Rev. 2022-04-05 / Sujeito a alterações.