- The digital counter OTT Z400 is a time-saving device for flow measurements with hydrometric current meters. It automatically records the number of propeller revolutions by counting the impulses. Besides, it can output the velocity of flow immediately after the measurement (optional). The OTT Z400 may be used for current meter measurements on rod as well as for floating current meters and features optimal adjusted measurement modes for both.
- Different modes, adapted to the application: Pulse, Time and integration measurement
- Integration measurement especially for measurements with suspended current meters with e.g cable way: Z400 determines the number of pulses and the time from immersion of the current meter to the closing of the ground contact.
- Exact calculation of the flow rate (optional): Z400 uses the individual equation of the current meter
- The USB interface simply entering the basic settings on the PC, alternatively directly at counter set
Thông số kỹ thuật
- measurement method : Start of the measuring time when first closing the wing contact
- measuring times : 5, 10, 15, 20, 30, 40, 50, 60, 80, 100, 120 s and infinity
- Measuring modes Pulse, time, integral and integral measurement with residual limb determination
+ Display accuracy : 0.1 s
+ timekeeping : 0.1 pulses
+ pulse
+ Accuracy : +/- 0.01 s
+ timekeeping : +/- 0.5 pulses
+ pulse
+ timeout at measurement time infinite : No
- Cutoff frequency for vane impulses : 50 Hz (680 ohms) / 100 Hz
- Measurement with 680 ohms (series) possible : Yes
- Display the flow velocity : optional
- Automatic shutdown : yes (1 ... 59 minutes adjustable)
- Display for the pulses : LCD, 4 digits, digits 10 mm high
- counting : adding
- Counting range : 9999, no overflow
- housing material : aluminum
- permissible ambient temperature : -20 ° C ... + 60 ° C
- Dimensions LxWxH :
+ with rubber covers : 128mm x 125mm x 65mm
+ without rubber covers : 121mm x 125mm x 49mm
- mass : 670 g
- protection class : IP65
- Interface : USB 1.1
- data storage : 4 MB of memory