美国德威尔 TSWB系列数显温度水位开关
Series TSWB
Digital Temperature/Water Level Switch
2个独立的温度设定点、水位报警
The Series TSWB Digital Temperature Switch has a high and a low set point for controlling the water temperature. The low set point can either be manually or automatically reset. This control also has a conductivity probe input. This input supplies 12 VAC to the conductivity probe to check for low water condition. There are three relay outputs which can be assigned in the field to the high temperature set point, low temperature set point or the low water level input. The Model TS2-K configuration key can make configuring multiple controls quick and easy.
Probe Range: PTC -58 to 302ºF (-50ºC to 150ºC); NTC -58 to 230ºF (-50ºC to 110ºC).
Probe Temperature Input: (Selectable by parameter) PTC1000 probes (25ºC-1000 Ohm) / NTC.
Probe Level Input: Conductivity Probe: max Voltage 12 VAC. Sensitivity established from factory at 100K Ohm.
Output: R1 SPST NO Relay Resistive load 5A @ 250 VAC; R2 SPST NC Relay Resistive load 5A @ 250 VAC; R3 SPDT Relay Resistive load 16A @ 240 VAC.
Horsepower Rating: 1HP — 10FLA, 60LRA 250 VAC.
Control Type: On/Off.
Power Requirement: 115 VAC ± 10%, 230 VAC ± 10%, 24 VAC/DC ± 10%, 12 VAC/DC ± 10%.
Power Consumption: 4VA (230V/115V) 1.5VA (24V/12V).
Accuracy: Better than 1% of full scale.
Display: 3-digit, red 1/2″ digits.
Resolution: 1º (3 digits).
Memory Backup: Nonvolatile memory.
Ambient Operating Temperature: 32 to 158ºF (-30 to 70ºC).
Storage Temperature: -4 to 176ºF (-30 to 80ºC).
Weight: 3.5 oz.
Front Protection: IP64.
Agency Approvals: CE, UL, cUL.
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