Accessories
Electronic Display Unit
Display
General
The Unit has a two-line LCD-Display with 16 characters per line; Character height: 7.5 mm. The brightness of the characters can be adjusted using the Control Buttons in Set-up-Mode or over a connected PC (please refer to Points 6.2 / 6.3). The display languages of English or German are also selectable/programmable in the Set-up-Mode.
Display Modes
Various alternating Display modes can be selected by use of the "MODE" button (when operated in measurement mode). Each press of this button switches the Display to the next selection choice (Toggle Principle).
Display Mode 1
Example: Gas Meter Type TG 1 | |
Display Mode 2
Example (as before): | |
Display Mode 3
Example (as before): |
After a further press of the MODE button, the first Display Mode again appears.
Display of "Power Status"
The Power Status shown in the Display will be indicated by one of the following:
- "Mains": Unit is connected to Mains Supply
- "Battery": Unit is battery operated
- "Low Batt": Battery charge is down to 10% capacity (see Point 3.3 "Battery Operation"). The display “Low Batt blinks.
List of Decimal Places and Increments in Volume and Flow Displays
The resolution and the number of decimal places displayed for Volume [ltr] and Flow Rate [ltr/h] varies, depending on the Gas Meter type for which the Unit is programmed and the serial no. of the connected Gas Meter. These are listed in the following Tables 1 and 2.
| Gas Meter Type | Volume [ltr] | Flow Rate [ltr/h] | Time Window for Average Calculation [sec] |
| TG 05, TG 1 | 00000,00 | 000,00 | 30 |
| TG 3, TG 5, TG 10 | 000000,0 | 0000,0 | 30 |
| TG 20, TG 50 | 0000000 | 00000 | 30 |
| BG 4 | 000000,0 | 0000,0 | 6 |
| BG 6 | 0000000 | 00000 | 8 |
| BG 10 | 0000000 | 00000 | 12 |
| BG 16 | 0000000 | 00000 | 15 |
| BG 25 | 0000000 | 00000 | 9 |
| BG 40 | 0000000 | 00000 | 6 |
Table1: List of Decimal Places and Duration of Time Windows for Calculation of Average Flow Rate for connected Gas Meters up to and including Serial No. 17.105 which are equipped with a Pulse Generator with a 100-slit-disk.
| Gas Meter Type | Volume [ltr] | Flow Rate [ltr/h] | Time Window for Average Calculation [sec] | ||
| Decimals | Resolution | Decimals | Resolution | ||
| TG 01 | ,0000 | 0,0005 | 0.000,0 | 0,2 | 10 |
| TG 05 | 000,0000 | 0,0025 | 000,00 | 0,3 | 10 |
| TG 1 | 0.000,000 | 0,005 | 000,00 | 0,6 | 10 |
| TG 3 | 0.000,000 | 0,015 | 0.000,0 | 1,8 | 10 |
| TG 5 | 0.000,000 | 0,025 | 0.000,0 | 3,0 | 10 |
| TG 10 | 00.000,00 | 0,05 | 0.000,0 | 6,0 | 10 |
| TG 20 | 000.000,0 | 0,1 | 00.000 | 12 | 10 |
| TG 25 | 0.000,000 | 0,125 | 0.000,0 | 32,2 | 10 |
| TG 50 | 00.000,00 | 0,25 | 00.000 | 75 | 10 |
| BG 4 | 00.000,00 | 0,05 | 0.000,0 | 30 | 10 |
| BG 6 | 000.000,0 | 0,1 | 00.000 | 45 | 10 |
| BG 10 | 00.000,00 | 0,25 | 00.000 | 75 | 10 |
| BG 16 | 000.000,0 | 0,5 | 00.000 | 120 | 10 |
| BG 40 | 000.000,0 | 0,5 | 00.000 | 300 | 10 |
| BG 100 | 000.000,0 | 0,5 | 00.000 | 900 | 10 |
Table 2: List of Decimal Places and Duration of Time Windows for Calculation of Average Flow Rate for connected Gas Meters with Serial No. 17.106 and following which are equipped with a Pulse Generator with a 200-slit-disk.
Display-Overflow from too high a Flow Rate
When the connected Gas Meter type is selected on the EDU, the maximum flow rate according to the Data Sheet for that Meter will be automatically defined as such. For custom-made Gas Meters, the appropriate maximum flow rate can be programmed in (See Point 6).
If the connected Gas Meter is operated with a flow rate that is higher than the maximum indicated for it in its Data Sheet, the announcement “Too Fast will appear in the Display.
Resetting the Display Values
All displayed values can be returned to zero using the RESET button. As protection against the RESET button being pressed by mistake, it has a short response delay built-in. It must be held pressed for about 0.5 sec. to activate it. After resetting, the Initial Announcement (with the identification name EDU 32 FP and the Program Version Number) will be displayed again for about 3 seconds.
Subject to alterations