On the RHP series temp/humidity sensors, is it possible to get a model with a 0-10 V dew-point output and a 0-10 V temperature output? I need dew point output, and would prefer the temperature output to be configured as 0-10 V rather than one of the other
I would recommend getting an RHP-3W22 instead of the RHP-3W44. This will give you just the 0-10V outputs instead of a combination 0-10V and 4-20 mA.
What is the difference between the PS224 snubber with it's 2-5 µm mesh and the PS225 snubber for pulsating gas. (What is the mesh size of the PS225 and are there other differences from the PS224?)
The main difference between the PS224 and PS225 is the micron rating. The PS224 for air and gas service has a micron rating of 2-5 microns. The PS225 for pulsating gas has a micron rating of 1 micron.
What would be the consequences of using a DPGA gauge on a water system instead of a DPGW?
The DPGA can only be used for air and compatible gases. If you use the DPGA for liquid service, it will ruin the internals of the gage causing irreparable damage that would not be covered under warranty. The DPGW should be used instead for liquid applications.
What is the proper way to wrap the wire around the Current Transformer #CCT40-200?
If the current running through your wire is high enough to be detected by the model CCT you have, then you can simply single wrap it as you have shown in the attached PDF you provided. However, if the current is too low to be detected, then you would want to wrap the wire around until the current is high enough to be detected. Here is a link to the service manual for our Series SCT Current Transformer that explains this concept better, Series SCT Instruction Manual. See Figure 4.
What purpose does the sintered filter perform on the RHP transmitter and does its use preclude adding the LCD option? Is it recommended when transmitter is located just after blower but before cooling coil?
The sintered filter is recommended in applications where you expect to be close to the temperature limit of the RHP (near 140°F) because the sintered filter has higher temperature resistance than the standard fiber membrane filter. You can order the sintered filter version with or without an LCD screen.
How often do our pressure gages need to be recalibrated?
There is no set life span for any of our products, as it varies based on usage. For critical applications, the unit should be tested 2-3 times a year. Under normal circumstances, the units should be tested annually.
Does Dwyer offer any certification on their products?
Yes, at an additional cost, contact our service group for pricing; we are able to provide NIST certification on many of our products. We can also issue a certificate of conformance at no charge for all of our products stating that they meet our published specifications.
How are the F6 & F7 vertical level switches converted from N.O. to N.C. or vice versa?
The float is removed and replaced upside down.
Question 1. What is the input impedance of the SPPM meter with voltage input? I'm replacing an old analog meter with a 0-100 uA movement with a more reliable digital panel meter. Question 2. The analog meter I want to replace has a two-range non-linear vi
The SPPM with the voltage input has a 10MΩ input impedance. Also, a non-linear calibration curve can be created by merely using the software in the SPPM. One can use the sensor linearization and use up to 20 calibration points and even have your results converted into a .csv file.
