Product Introduction
F144B-DCB DC Ammeter and Voltmeter with Alarm Output Features: Used for measuring DC current and voltage, and providing over-limit alarm output. The scale panel can indicate temperature, pressure, or other non-electrical quantities (as per user requirements). Alarm point setting: Can be configured with upper limit, lower limit, and both limits. Indication accuracy: 1.5. Ambient temperature: -25℃ to +55℃. Enclosure protection: IP44 (IP56 with protective cover; must be specified in the order). Vibration resistance: 2-100HZ, ≤0.7g. Withstand voltage: AC2.5KV, 50HZ, 1min. Operating power supply: 24Vdc±25%, 100Vac, 220Vac±20%. Power consumption: ≤2VA. Output contact capacity: AC 250V, 1A; DC28V, 1A.
Specifications
F144B-DCB DC Ammeter and Voltmeter with Alarm Output Features: Used for measuring DC current and voltage, and providing over-limit alarm output.
Scale panel indication can be temperature, pressure, or other non-electrical quantities (as per user requirements).
Alarm point setting: Can be configured with upper limit, lower limit, and both upper and lower limits.
Indication accuracy: 1.5 Ω.
Ambient temperature: -25℃ to +55℃.
Environment protection: IP44 (IP56 with protective cover; must be specified when ordering).
Vibration resistance: 2-100HZ, ≤0.7g
Voltage withstand: AC2.5KV, 50HZ, 1min
Operating power supply: 24Vdc±25%, 100Vac, 220Vac±20%
Power consumption: ≤2VA
Output contact capacity: AC 250V, 1A; DC28V, 1A
Product Category:
Model Development Angle Dimensions (mm) Opening Size (mm) Weight (kg)
F72B-DCB 90° 72*72*120 68*68+0.5 0.15
F96B-DCB 90° 96*96*130 92*92+0.5 0.3
F144B-DCB 90° 144*144*130 138*138+0.5 0.6
F72B-DC 240° 72*72*120 68*68+0.5 0.45
F96B-DC 240° 96*96*130 92*92+0.5 0.5
F144B-DC 240° 144*144*130 138*138+0.5 0.6
Instructions for Use:
1. This instrument is used for indicating temperature and pressure with 4-20mA and other DC signal inputs. It has a set alarm output function. The product dimensions conform to DIN43700 requirements and comply with marine specifications and IEC standards.
2. The instrument terminal arrangement is shown in Figures 1.2 to 1.6:
a) Figure 1.2 shows the upper or lower limit alarm for F96 and F144 models; Figure 1.4 shows the upper and lower limit alarms for F96 and F144 models.
b) Figure 1.3 shows the upper or lower limit alarm, with an additional 24VDC isolated power supply output, which can assist in some special applications. This power supply can provide 50mA of current, sufficient to drive a single sensor normally.
c) Figures 1.5 and 1.6 show the upper and lower limit alarms of the F72 model, respectively.
3. All instruments have a setting adjustment knob. Generally, the instruments are pre-adjusted according to user requirements at the factory, but users can adjust them themselves if needed.
4. Users should specify the model, specifications, power supply, alarm limits, and other parameters when ordering, and indicate and confirm them in the contract.
5. For special purpose instruments, please add "J" after the numbers in the first half of the model number (**for instruments with a 240° angle), such as F96JB-DC.
