SoundWater TEM100 Thermal Energy Meter

Name: SoundWater TEM100 Thermal Energy Meter
Brand: SoundWater Technologies

SoundWater TEM100 Thermal Energy Meter

The SoundWater TEM100 Thermal Energy Meter is a completely non-invasive BTU metering system for hydronic heating and chilled-water loops. A clamp-on Cypress ultrasonic flow sensor and a matched, serialized pair of surface-mount PT1000 RTDs (supply and return) all strap to the outside of the pipe and wire into one wall-mounted controller with a backlit 5-inch colour touchscreen, which computes flow, temperature differential, energy rate and energy totals — no pipe cutting, no thermowells, no shutdown.

The controller integrates directly with building automation over BACnet IP, Modbus RTU (RS485), pulse and alarm outputs, replacing the usual separate RTD transmitters, flowmeter and BTU calculator with a single package. Six hardware configurations cover 1″ to 24″ pipe in both double- and single-traverse geometries, and every kit ships with a NIST-traceable temperature calibration certificate.

Completely non-invasive — clamp-on flow sensor and surface-mount RTDs; no cutting, draining or shutdown
Matched PT1000 RTD pair (1/3 DIN, matched to 0.09 °F, serialized) for accurate differential temperature
Wall-mounted 5″ colour touchscreen shows up to six values — energy rate, energy totals, flow, ΔT, supply / return temperature
BACnet IP, Modbus RTU / RS485, pulse and alarm outputs for BAS, SCADA, PLC or HMI
1″ to 24″ pipe across six hardware configurations (double and single traverse)
Flow accuracy ±1.0–2.0% of reading typical (3″–24″); 200:1 turndown
SWT Reciprocity Architecture for zero-point stability; one-piece flow sensor, no assembly
Certified for use in C1D2 hazardous areas — complies with UL 61010-1, UL 121201, CSA C22.2 No. 61010-1 and CSA C22.2 No. 213
12–24 VDC (6 W) or optional 100–240 VAC power; NEMA 4/6P / IP65 enclosure
NIST-traceable temperature calibration certificate included; flow certificate optional

Chilled-water and hot-water BTU metering
Tenant and departmental energy sub-metering
Central plant, boiler and chiller efficiency monitoring
District energy and campus loops
Retro-commissioning and measurement & verification (M&V)
Heat-exchanger performance monitoring

PRODUCT MANUAL

System	Clamp-on Cypress ultrasonic flow sensor + matched PT1000 RTD pair + wall-mounted TEM controller
Hardware — double traverse	TEM100-T420-C2: 1″–3″ · TEM100-T410-C5: 2″–6″ · TEM100-T405-C11: 8″–14″
Hardware — single traverse	TEM100-T410-CM5: 4″–14″ · TEM100-T405-CM5: 10″–14″ · TEM100-T405-CM11: 10″–24″
Pipe materials	Steel, stainless steel, copper, brass, aluminum, ductile iron; PVC, CPVC, HDPE, LDPE, PE, PIP, FRP, PEX
Velocity range	0 to 64 ft/s (0 to 20 m/s), bidirectional; turndown 200:1
Flow accuracy	3″–24″: ±1.0% to 2.0% of reading typical; 1″–2″: ±2.0% to 3.0% (standard conditions, 15D / 5D)
Temperature sensors	PT1000 RTD, 1/3 DIN (1000 Ω ±0.03% at 0 °C), −50 to 100 °C; matched pair to 0.09 °F at 50 °F, serialized; 2-point calibration at 0 and 100 °C; brass housing, 4-wire stainless armored cable
Displayed values	Flow rate, flow total (net / forward / reverse), velocity, thermal energy (net / supply / return), energy rate, supply and return temperature, ΔT, sound speed
Outputs	BACnet IP; Modbus RTU RS485; pulse NFET open-drain (to 39,000 Hz); alarm NFET open-drain
Display	Backlit 5″ colour LED touchscreen, up to six measurements on screen; epoxy-coated aluminum enclosure, 6.5″ × 6.5″ × 3.9″
Power	12–24 VDC, 6 W; optional 100–240 VAC 50/60 Hz (-AC option)
Temperature	Liquid / pipe −40 to 212 °F (−40 to 100 °C); ambient −40 to 140 °F (−40 to 60 °C)
Enclosure rating	NEMA 4/6P; IP65 splash-proof
Hazardous area	Certified for use in Class I, Division 2 (C1D2) hazardous areas
Electrical safety	Complies with UL 61010-1, UL 121201, CSA C22.2 No. 61010-1, CSA C22.2 No. 213
Security	Six-digit password protection
Traceability	NIST-traceable temperature calibration certificate included; flow calibration certificate optional
Kit contents	Cypress flow sensor with 10 ft armored cable; two PT1000 surface-mount RTDs with 30 ft armored cables; nickel-plated brass cord grip; coupling gel; mounting straps