• Tech Ads

250 watt AC-DC power supply – Artesyn Emerson

A 250 watt, open frame, single output AC/DC power supply in an industry standard 4 x 7 format. This chassis mount power supply has a 85-264 AC volt Wide-range input AC input with power factor correction.

NLP250N-99S12J Artesyn/Emerson

It is medical rated with an operating temperature range of 0 – 70 °C and up to 86% efficiency. The NLP250N-99S12J is Rohs 6/6 compliant.

250 watt AC-DC power supply - Artesyn Emerson

Some Specs

  • AC Input – Wide-range Inputs:    85 – 264 AC
  • Outputs:   – 12 Volts, 21 Amps, 250 Watts.
  • Efficiency:  –  86%
  • Dimensions (L x W x H) –    7 x 4 x 1.5 in

Sager Power Systems

Sager Power Systems is a specialized group within Sager Electronics focused solely on power supplies. They offer over 15,000 world-class AC/DC and DC/DC standard solutions from leading power supply manufacturers, and is able to evaluate and specify standard and value added solutions.

HS1101LF Humidity Sensor – Measurement Specialties

This sensor is based on a unique capacitive cell, this affordable sensor is used in applications such as office automation, HVAC and home appliances and process control too.

HS1101LF Humidity Sensor – Measurement Specialties

This sensor sports a fast response time and very low temperature coefficient. It also has High reliability and long term stability of Parameters.

Humidity Measuring Range 1% – 99% RH. Nominal capacitance at 55% RH is 180 pF.

HS1101LF Humidity Sensor

A Humidity to Frequency Convertor to make a Easy Digital Counter or Embedded Interface using the venerable 555 is shown below.

555 Humiidity Circuit
Correction – R4=49.9kΩ /  RV1=50 kΩ potentiometer.

“Measurement Specialties is a global designer and manufacturer of sensors and sensor-based systems which measure pressure/force, position, vibration, temperature, humidity, and fluid properties.”

Measurement Specialties
1000, Lucas Way Hampton, VA 23666 United States.

HYT 271 Humidity Temperature Module – IST AG

This water proof, chemical resistant, low drift Humidity and Temperature module from IST :provides a fully calibrated and compensated humidity and temperature digital signal output.

HYT 271 Humidity Temperature Module – IST AG

The Digital output is for a I2C interface in a 14 bit resolution. Accuracy at 23 °C is +/- 1.8 % RH  in the span of 0 % RH to 80 % RH. This reading comes with a Response time of less than 4 seconds.

Humidity Temperature Module - IST AG

They also have a LabKit with USB Interface to evaluate and implement in your system.

“The Labkit was developed as a Plug&Play tool for a  fast evaluation of the HYGROCHIP digital humidity  sensors. The ready-to-use system consists of a  PC-adapter with an USB connecting wire, a connection adapter with plugs for all product variants.”

Component level. manufacturer of thin-film RTD temperature sensors, capacitive humidity sensors, mass flow sensors and conductivity sensors.

Innovative Sensor Technology IST AG
Stegrütistrasse 14 9642 Ebnat-Kappel Switzerland