|
User Manual for Dorrough 40-C - Horizontal Rackmount Analog Loudness Meter with "C" Scale Option Click to enlarge the picture
Contents of the user manual for the Dorrough 40-C - Horizontal Rackmount Analog
- Product category: Metering Dorrough
- Brand: Dorrough
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Dorrough Metering
|
User manual for the Dorrough 40-C - Horizontal Rackmount Analog contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Dorrough product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Dorrough user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Dorrough product will considerably shorten its lifespan!
|
Product description The Dorrough 40-C is a professional analog loudness meter, designed for modern stereo recording and broadcast requirements, and offering simultaneous average and peak program display, with separate ballistics and lightning-fast response. This meter is equipped with a 40-LED bar graph, allowing for 20dB of headroom in 1dB steps of resolution per LED. - Rack or console mounted Analog Loudness Meter with dual dedicated ballistics for simultaneous peak and average readout
- Microchip processor with accuracy of oscilloscope, ultra-fast response time of 600ms average, virtually instantaneous peak for seamless continuous display of peak/average relationship
- Individual left and right XLR inputs for stereo mixing applications, +4 dB factory-calibrated
- Display with 40 LED's providing 1dB resolution per LED
- Proprietary "C" scale with 20dB of headroom in 1dB steps, identical to AES/EBU digital standard
- XLR, 6 DIP switches for function assignments, mini 8-pin DIN port out for access to alarm relays, meter mode functions, and peak hold modes, standard with unit
In the Box Dorrough 40-C - Horizontal Rackmount Analog Loudness Meter with "C" Scale Option Owner's Manual 1 Year Warranty Table of Contents
|
Upload User Manual
Have you got an user manual for the Dorrough 40-C - Horizontal Rackmount Analog Loudness Meter with "C" Scale Option in electronic form? Please send it to us and help us expand our library of instruction manuals.
Thank you, too, on behalf of other users.
To upload the product manual, we first need to check and make sure you are not a robot. After that, your "Submit Link" or "Upload File" will appear.
Technical parametersDorrough 40-C Specs | Input Impedance | 20 kOhm balanced
10 kOhm single-ended, +/- 2% | | Common Mode Rejection Ratio | 80 dB at 60 Hz
60 dB at 20 kHz (balanced mode) | | Input Sensitivity | -10 dB for full-scale display | | Maximum Input Level | +24 dB before clipping | | Signal Path Bandwidth | 10 Hz - 25 kHz, +/- .25 dB | | Signal Path Distortion | >1% THD at 1 kHz, +24 dB input | | Sum Error | >0.1 dB at 1 kHz | | Difference Error | >0.1 dB at 1 kHz | | Display Resolution | 40 LEDs, 1 dB/LED | | Step Size Error | +/- 0.25 dB | | Absolute Error | +/- 0.25 dB (Full Scale -39 dBu) | | Drift | +/- 0.25 dB | | Average Time Constant | 600 mS, +/- 6% | | Peak Acquisition Period | 10 uS, to full-scale, sine input 25kHz | | Peak Attack Period | Virtually Instantaneous | | Peak Decay Period | 180 mS, from full-scale to all LEDs off | | Display Update Rate | Approximately 10 mS | | Display Duty Cycle | Display Time, AVERAGE, PEAK HOLD - 75%
Display Time, PEAK - 100% | | Power Supply Input Range | 117/237 VAC RMS, -20% to +10%, 50-60 Hz | | Calibration Controls | None needed | | User Controls | Left/Right input sensitivity
Option DIP Switch:
A) Peak Auto [ON]
B) Difference Mode [ON/OFF]
C) Over Level Alarm [ENABLE]
D) Under Level Alarm [ENABLE]
E) Auto ARMP | | User Port | DB-9 Connector:
A) Alarm relay closure contacts,1 form C, 1A, 30V AC or DC
B) Mode control switch (user supplied)
C) PEAK function switch (user supplied) | | Dimensions (WxDxH) | 8.5 x 6.5 x 2.8" (215.9 x 165.1 x 71.1mm) | | Weight | 2.3 lb (1.04 kg) | | | | Package Weight | 3.08 lb | | Box Dimensions (LxWxH) | 11.6 x 8.8 x 5.6" |
Rating100% users recommend this product to others. And what about you?
This product has already been rated by 50 owners. Add your rating and experience with the product.
Discussion
Ask our technicians if you have a problem with your settings,
or if anything is unclear in the user manual you have downloaded.
You can make use of our moderated discussion.
The discussion is public and helps other users of our website who may be encountering similar problems.
The discussion is empty - enter the first post
Post a new topic / query / comment:
|
|
|
| Request for user manual |
You can’t find the operation manual you are looking for? Let us know and we will try to add the missing manual:
I’m looking for a manual / Request for manual
Current requests for instruction manuals:
NEWER F100 CAMERA MONITOR...
PhotoStage progessional...
powerpint...
Night Detective Quest 5M 5x Night Vision Monocular ...
Ibanez AM93QM User Manual....
|
| Discussion |
Latest contributions to the discussion:
TR-P5TP pink robot dog
Name: Allyson
Top Race Race & Remote Control
Hello we are having issues with the remote to the robot dog it just flashes a red light will not sync to the robot dog what so ever the dog is charged and batteries have been changed out more the once, Can i get help trouble shooting the issue or if something needs to be sent bac...
Query
Name: Libba Guyton
Canon Pixma TS9520 Wireless All-In-One Printer
Support Code 1851
Multi purpose tray guide is open. Close the guide and press OK.
Done and the same message continue to appear....
Manual
Name: Grant
Konus KonuStart-700B 60mm f 11.6 Refractor
Please send user manual for Konustart-700B to above email address....
Fs3x manual
Name: Randy Reid
DigiTech FS3X Three-Function Foot Switch
I need manual
...
adding additional chime
Name: Stan Stansfield
OhmKat Video Doorbell Power Supply for
The additional chime does not work and is closure to the transmitter then the first one. I plugged in the additional chime and set the volume and chime. The original chime works when the additional chime is plugged in to new location. The original chime is located further away bu...
|
|
