|
3267 |
Click on the above
image for a full
view ... |
|
| A maximum/minimum digital thermometer module with the LCD display and circuitry on a small PCB with a 16-way solder edge connection. The PCB is fixed to a small plastic bracket that houses the battery. The module has an onboard temperature sensor or an external probe or probes may be fitted. By making the appropriate connections to the module the following functions are available:· |
Temperature display in °C or °F |
 |
Set high or low temperature detector |
| |
Output goes high when set points are exceeded |
| |
Display high or low temperature settings |
| |
Set sample rate to once every second or once |
| |
Pulse output when either set point is reached |
| |
2kHz alarm output for approximately 1 minute when high or low temperature point is reached |
| |
Recall the lowest or highest temperature reached since last reset |
| A comprehensive manual is supplied with the module, it shows how to connect relays to the temperature set point outputs, how to connect a buzzer to the alarm output, and how to connect external probes to the module. |
| Internal Probe: |
-5°C to +50°C |
| Resolution: |
0· 1°C (0· 1°F) |
| Accuracy: |
-5°C to 30°C ▒1°C at 1· 5V |
|
+31°C to +50°C ▒2°C at 1· 5V |
| White (low range): |
-40°C to +50°C |
| 3 metre cable: |
-40°C to -21°C ▒2°C at 1· 5V |
|
-20°C to +25°C ▒1°C at 1· 5V |
|
+26°C to +50°C ▒2°C at 1· 5V |
| Grey (high range): |
+20°C to +110°C |
| 3 metre cable: |
+20°C to +34°C ▒2°C at 1· 5V |
|
+35°C to +75°C ▒1°C at 1· 5V |
|
+76°C to +110°C ▒2°C at 1· 5V |
| Sampling Rate: |
1 second or 15 seconds |
| Working Voltage: |
1· 5V (1· 25V to 1· 65V) |
| Average Current: |
10╡A approx. (at 15 second |
| Overall Size: |
68 x 35 x 23mm deep |
| A plastic bezel (FE35Q) is available for use with the module, size 68 x 35mm and increases the overall depth of the module to 27mm. |
| External probes are also available: |
| Probe Diameter: 7mm at base, 4mm at tip. |
| The probes are supplied connected to approximately 3 metres of miniature 2 core cable 2mm diameter with open end. Note that the accuracy of the meter decreases by ▒2· 5°C per 3m of cable and may be unstable with long wires or cable different from that supplied with the probes. |
| The meter itself will only operate in the range -5°C to 50°C mainly because of the LCD display so for temperatures outside this range, the external probes will be required. Shortening the cable will improve the accuracy. The module requires a 1· 5V AA cell (not supplied). |
|
